Merge branch 'release/0.9.8-1'0.9.8-1

author: Jörg Frings-Fürst <debian@jff-webhosting.net> 2017-12-03 20:50:11 +0100
committer: Jörg Frings-Fürst <debian@jff-webhosting.net> 2017-12-03 20:50:11 +0100
commit: 4cf52fc0bc3b80c0ef6c58c5db4413ebdafe661c (patch)
tree: 676b26b024117cf656080a011e3d17b8fb6889af /gnulib-m4
parent: 1ecbfbb92248e67b564f5b144c4671ccaa86ee2f (diff)
parent: 44ff3127b1e57b703c2a73a24f7ab38e4aad8ae4 (diff)
130 files changed, 2707 insertions, 801 deletions
diff --git a/gnulib-m4/00gnulib.m4 b/gnulib-m4/00gnulib.m4
index bb37e32a..bb3512fd 100644
--- a/gnulib-m4/00gnulib.m4
+++ b/gnulib-m4/00gnulib.m4
@@ -1,5 +1,5 @@
 # 00gnulib.m4 serial 3
-dnl Copyright (C) 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/absolute-header.m4 b/gnulib-m4/absolute-header.m4
index 7ffc38d7..c73adc82 100644
--- a/gnulib-m4/absolute-header.m4
+++ b/gnulib-m4/absolute-header.m4
@@ -1,5 +1,5 @@
 # absolute-header.m4 serial 16
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/alloca.m4 b/gnulib-m4/alloca.m4
index 2382ff1e..867954a2 100644
--- a/gnulib-m4/alloca.m4
+++ b/gnulib-m4/alloca.m4
@@ -1,5 +1,5 @@
 # alloca.m4 serial 14
-dnl Copyright (C) 2002-2004, 2006-2007, 2009-2016 Free Software Foundation,
+dnl Copyright (C) 2002-2004, 2006-2007, 2009-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -44,12 +44,12 @@ AC_DEFUN([gl_FUNC_ALLOCA],
 AC_DEFUN([gl_PREREQ_ALLOCA], [:])
 
 # This works around a bug in autoconf <= 2.68.
-# See <http://lists.gnu.org/archive/html/bug-gnulib/2011-06/msg00277.html>.
+# See <https://lists.gnu.org/r/bug-gnulib/2011-06/msg00277.html>.
 
 m4_version_prereq([2.69], [] ,[
 
 # This is taken from the following Autoconf patch:
-# http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=6cd9f12520b0d6f76d3230d7565feba1ecf29497
+# https://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=6cd9f12520b0d6f76d3230d7565feba1ecf29497
 
 # _AC_LIBOBJ_ALLOCA
 # -----------------
diff --git a/gnulib-m4/asm-underscore.m4 b/gnulib-m4/asm-underscore.m4
new file mode 100644
index 00000000..07270c92
--- /dev/null
+++ b/gnulib-m4/asm-underscore.m4
@@ -0,0 +1,71 @@
+# asm-underscore.m4 serial 3
+dnl Copyright (C) 2010-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible. Based on as-underscore.m4 in GNU clisp.
+
+# gl_ASM_SYMBOL_PREFIX
+# Tests for the prefix of C symbols at the assembly language level and the
+# linker level. This prefix is either an underscore or empty. Defines the
+# C macro USER_LABEL_PREFIX to this prefix, and sets ASM_SYMBOL_PREFIX to
+# a stringified variant of this prefix.
+
+AC_DEFUN([gl_ASM_SYMBOL_PREFIX],
+[
+  dnl We don't use GCC's __USER_LABEL_PREFIX__ here, because
+  dnl 1. It works only for GCC.
+  dnl 2. It is incorrectly defined on some platforms, in some GCC versions.
+  AC_REQUIRE([gl_C_ASM])
+  AC_CACHE_CHECK(
+    [whether C symbols are prefixed with underscore at the linker level],
+    [gl_cv_prog_as_underscore],
+    [cat > conftest.c <<EOF
+#ifdef __cplusplus
+extern "C" int foo (void);
+#endif
+int foo(void) { return 0; }
+EOF
+     # Look for the assembly language name in the .s file.
+     AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1
+     if LC_ALL=C grep -E '(^|[[^a-zA-Z0-9_]])_foo([[^a-zA-Z0-9_]]|$)' conftest.$gl_asmext >/dev/null; then
+       gl_cv_prog_as_underscore=yes
+     else
+       gl_cv_prog_as_underscore=no
+     fi
+     rm -f conftest*
+    ])
+  if test $gl_cv_prog_as_underscore = yes; then
+    USER_LABEL_PREFIX=_
+  else
+    USER_LABEL_PREFIX=
+  fi
+  AC_DEFINE_UNQUOTED([USER_LABEL_PREFIX], [$USER_LABEL_PREFIX],
+    [Define to the prefix of C symbols at the assembler and linker level,
+     either an underscore or empty.])
+  ASM_SYMBOL_PREFIX='"'${USER_LABEL_PREFIX}'"'
+  AC_SUBST([ASM_SYMBOL_PREFIX])
+])
+
+# gl_C_ASM
+# Determines how to produce an assembly language file from C source code.
+# Sets the variables:
+#   gl_asmext - the extension of assembly language output,
+#   gl_c_asm_opt - the C compiler option that produces assembly language output.
+
+AC_DEFUN([gl_C_ASM],
+[
+  AC_EGREP_CPP([MicrosoftCompiler],
+    [
+#ifdef _MSC_VER
+MicrosoftCompiler
+#endif
+    ],
+    [gl_asmext='asm'
+     gl_c_asm_opt='-c -Fa'
+    ],
+    [gl_asmext='s'
+     gl_c_asm_opt='-S'
+    ])
+])
diff --git a/gnulib-m4/btowc.m4 b/gnulib-m4/btowc.m4
index 47e8fd8a..f59db65a 100644
--- a/gnulib-m4/btowc.m4
+++ b/gnulib-m4/btowc.m4
@@ -1,5 +1,5 @@
-# btowc.m4 serial 10
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+# btowc.m4 serial 11
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -10,7 +10,7 @@ AC_DEFUN([gl_FUNC_BTOWC],
 
   dnl Check whether <wchar.h> is usable at all, first. Otherwise the test
   dnl program below may lead to an endless loop. See
-  dnl <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>.
+  dnl <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>.
   AC_REQUIRE([gl_WCHAR_H_INLINE_OK])
 
   AC_CHECK_FUNCS_ONCE([btowc])
@@ -50,6 +50,8 @@ changequote(,)dnl
            case "$host_os" in
                       # Guess no on Cygwin.
              cygwin*) gl_cv_func_btowc_nul="guessing no" ;;
+                      # Guess yes on native Windows.
+             mingw*)  gl_cv_func_btowc_nul="guessing yes" ;;
                       # Guess yes otherwise.
              *)       gl_cv_func_btowc_nul="guessing yes" ;;
            esac
@@ -65,10 +67,12 @@ changequote([,])dnl
         dnl is present.
 changequote(,)dnl
         case "$host_os" in
-                 # Guess no on IRIX.
-          irix*) gl_cv_func_btowc_eof="guessing no" ;;
-                 # Guess yes otherwise.
-          *)     gl_cv_func_btowc_eof="guessing yes" ;;
+                  # Guess no on IRIX.
+          irix*)  gl_cv_func_btowc_eof="guessing no" ;;
+                  # Guess yes on native Windows.
+          mingw*) gl_cv_func_btowc_eof="guessing yes" ;;
+                  # Guess yes otherwise.
+          *)      gl_cv_func_btowc_eof="guessing yes" ;;
         esac
 changequote([,])dnl
         if test $LOCALE_FR != none; then
diff --git a/gnulib-m4/builtin-expect.m4 b/gnulib-m4/builtin-expect.m4
new file mode 100644
index 00000000..aa3364bf
--- /dev/null
+++ b/gnulib-m4/builtin-expect.m4
@@ -0,0 +1,49 @@
+dnl Check for __builtin_expect.
+
+dnl Copyright 2016-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl Written by Paul Eggert.
+
+AC_DEFUN([gl___BUILTIN_EXPECT],
+[
+  AC_CACHE_CHECK([for __builtin_expect],
+    [gl_cv___builtin_expect],
+    [AC_LINK_IFELSE(
+       [AC_LANG_SOURCE([[
+         int
+         main (int argc, char **argv)
+         {
+           argc = __builtin_expect (argc, 100);
+           return argv[argc != 100][0];
+         }]])],
+       [gl_cv___builtin_expect=yes],
+       [AC_LINK_IFELSE(
+          [AC_LANG_SOURCE([[
+             #include <builtins.h>
+             int
+             main (int argc, char **argv)
+             {
+               argc = __builtin_expect (argc, 100);
+               return argv[argc != 100][0];
+             }]])],
+          [gl_cv___builtin_expect="in <builtins.h>"],
+          [gl_cv___builtin_expect=no])])])
+  if test "$gl_cv___builtin_expect" = yes; then
+    AC_DEFINE([HAVE___BUILTIN_EXPECT], [1])
+  elif test "$gl_cv___builtin_expect" = "in <builtins.h>"; then
+    AC_DEFINE([HAVE___BUILTIN_EXPECT], [2])
+  fi
+  AH_VERBATIM([HAVE___BUILTIN_EXPECT],
+    [/* Define to 1 if the compiler supports __builtin_expect,
+   and to 2 if <builtins.h> does.  */
+#undef HAVE___BUILTIN_EXPECT
+#ifndef HAVE___BUILTIN_EXPECT
+# define __builtin_expect(e, c) (e)
+#elif HAVE___BUILTIN_EXPECT == 2
+# include <builtins.h>
+#endif
+    ])
+])
diff --git a/gnulib-m4/configmake.m4 b/gnulib-m4/configmake.m4
index 80b92548..b783296b 100644
--- a/gnulib-m4/configmake.m4
+++ b/gnulib-m4/configmake.m4
@@ -1,5 +1,5 @@
 # configmake.m4 serial 2
-dnl Copyright (C) 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/ctype.m4 b/gnulib-m4/ctype.m4
index a2165aaa..3791f463 100644
--- a/gnulib-m4/ctype.m4
+++ b/gnulib-m4/ctype.m4
@@ -1,5 +1,5 @@
 # ctype_h.m4 serial 6
-dnl Copyright (C) 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/dirname.m4 b/gnulib-m4/dirname.m4
index 6f8bec32..46f5394c 100644
--- a/gnulib-m4/dirname.m4
+++ b/gnulib-m4/dirname.m4
@@ -1,5 +1,5 @@
 #serial 10   -*- autoconf -*-
-dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/double-slash-root.m4 b/gnulib-m4/double-slash-root.m4
index dfd3921d..c80f9ead 100644
--- a/gnulib-m4/double-slash-root.m4
+++ b/gnulib-m4/double-slash-root.m4
@@ -1,5 +1,5 @@
 # double-slash-root.m4 serial 4   -*- Autoconf -*-
-dnl Copyright (C) 2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/eealloc.m4 b/gnulib-m4/eealloc.m4
index 63d74def..96b9bca5 100644
--- a/gnulib-m4/eealloc.m4
+++ b/gnulib-m4/eealloc.m4
@@ -1,5 +1,5 @@
 # eealloc.m4 serial 3
-dnl Copyright (C) 2003, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/environ.m4 b/gnulib-m4/environ.m4
index 9a0ea7e2..3b9fa5f5 100644
--- a/gnulib-m4/environ.m4
+++ b/gnulib-m4/environ.m4
@@ -1,5 +1,5 @@
 # environ.m4 serial 6
-dnl Copyright (C) 2001-2004, 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2001-2004, 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/errno_h.m4 b/gnulib-m4/errno_h.m4
index b111fce0..9f0f2f2f 100644
--- a/gnulib-m4/errno_h.m4
+++ b/gnulib-m4/errno_h.m4
@@ -1,5 +1,5 @@
 # errno_h.m4 serial 12
-dnl Copyright (C) 2004, 2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2004, 2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/error.m4 b/gnulib-m4/error.m4
index f772bcf5..57c6f125 100644
--- a/gnulib-m4/error.m4
+++ b/gnulib-m4/error.m4
@@ -1,6 +1,6 @@
 #serial 14
 
-# Copyright (C) 1996-1998, 2001-2004, 2009-2016 Free Software Foundation, Inc.
+# Copyright (C) 1996-1998, 2001-2004, 2009-2017 Free Software Foundation, Inc.
 #
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
diff --git a/gnulib-m4/exponentd.m4 b/gnulib-m4/exponentd.m4
index 7869a7d6..cd64b92d 100644
--- a/gnulib-m4/exponentd.m4
+++ b/gnulib-m4/exponentd.m4
@@ -1,5 +1,5 @@
 # exponentd.m4 serial 3
-dnl Copyright (C) 2007-2008, 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2008, 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/exponentf.m4 b/gnulib-m4/exponentf.m4
index d4298f29..54f609e5 100644
--- a/gnulib-m4/exponentf.m4
+++ b/gnulib-m4/exponentf.m4
@@ -1,5 +1,5 @@
 # exponentf.m4 serial 2
-dnl Copyright (C) 2007-2008, 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2008, 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/exponentl.m4 b/gnulib-m4/exponentl.m4
index c49cf2c3..ebfebe49 100644
--- a/gnulib-m4/exponentl.m4
+++ b/gnulib-m4/exponentl.m4
@@ -1,11 +1,12 @@
-# exponentl.m4 serial 3
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# exponentl.m4 serial 4
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_LONG_DOUBLE_EXPONENT_LOCATION],
 [
   AC_REQUIRE([gl_BIGENDIAN])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_CACHE_CHECK([where to find the exponent in a 'long double'],
     [gl_cv_cc_long_double_expbit0],
     [
@@ -79,9 +80,24 @@ int main ()
         [gl_cv_cc_long_double_expbit0=`cat conftest.out`],
         [gl_cv_cc_long_double_expbit0="unknown"],
         [
-          dnl When cross-compiling, we don't know. It depends on the
+          dnl When cross-compiling, in general we don't know. It depends on the
           dnl ABI and compiler version. There are too many cases.
           gl_cv_cc_long_double_expbit0="unknown"
+          case "$host_os" in
+            mingw*) # On native Windows (little-endian), we know the result
+                    # in two cases: mingw, MSVC.
+              AC_EGREP_CPP([Known], [
+#ifdef __MINGW32__
+ Known
+#endif
+                ], [gl_cv_cc_long_double_expbit0="word 2 bit 0"])
+              AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                ], [gl_cv_cc_long_double_expbit0="word 1 bit 20"])
+              ;;
+          esac
         ])
       rm -f conftest.out
     ])
diff --git a/gnulib-m4/extensions.m4 b/gnulib-m4/extensions.m4
index e114a6f7..f8543386 100644
--- a/gnulib-m4/extensions.m4
+++ b/gnulib-m4/extensions.m4
@@ -1,7 +1,7 @@
-# serial 15  -*- Autoconf -*-
+# serial 17  -*- Autoconf -*-
 # Enable extensions on systems that normally disable them.
 
-# Copyright (C) 2003, 2006-2016 Free Software Foundation, Inc.
+# Copyright (C) 2003, 2006-2017 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -68,6 +68,14 @@ dnl configure.ac when using autoheader 2.62.
 #ifndef _GNU_SOURCE
 # undef _GNU_SOURCE
 #endif
+/* Enable NetBSD extensions on NetBSD.  */
+#ifndef _NETBSD_SOURCE
+# undef _NETBSD_SOURCE
+#endif
+/* Enable OpenBSD extensions on NetBSD.  */
+#ifndef _OPENBSD_SOURCE
+# undef _OPENBSD_SOURCE
+#endif
 /* Enable threading extensions on Solaris.  */
 #ifndef _POSIX_PTHREAD_SEMANTICS
 # undef _POSIX_PTHREAD_SEMANTICS
@@ -128,6 +136,8 @@ dnl configure.ac when using autoheader 2.62.
   AC_DEFINE([_ALL_SOURCE])
   AC_DEFINE([_DARWIN_C_SOURCE])
   AC_DEFINE([_GNU_SOURCE])
+  AC_DEFINE([_NETBSD_SOURCE])
+  AC_DEFINE([_OPENBSD_SOURCE])
   AC_DEFINE([_POSIX_PTHREAD_SEMANTICS])
   AC_DEFINE([__STDC_WANT_IEC_60559_ATTRIBS_EXT__])
   AC_DEFINE([__STDC_WANT_IEC_60559_BFP_EXT__])
diff --git a/gnulib-m4/extern-inline.m4 b/gnulib-m4/extern-inline.m4
index 1e578f3d..207aa6a0 100644
--- a/gnulib-m4/extern-inline.m4
+++ b/gnulib-m4/extern-inline.m4
@@ -1,6 +1,6 @@
 dnl 'extern inline' a la ISO C99.
 
-dnl Copyright 2012-2016 Free Software Foundation, Inc.
+dnl Copyright 2012-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -11,7 +11,7 @@ AC_DEFUN([gl_EXTERN_INLINE],
 [/* Please see the Gnulib manual for how to use these macros.
 
    Suppress extern inline with HP-UX cc, as it appears to be broken; see
-   <http://lists.gnu.org/archive/html/bug-texinfo/2013-02/msg00030.html>.
+   <https://lists.gnu.org/r/bug-texinfo/2013-02/msg00030.html>.
 
    Suppress extern inline with Sun C in standards-conformance mode, as it
    mishandles inline functions that call each other.  E.g., for 'inline void f
@@ -28,16 +28,16 @@ AC_DEFUN([gl_EXTERN_INLINE],
    from calling static functions.  This bug is known to occur on:
 
      OS X 10.8 and earlier; see:
-     http://lists.gnu.org/archive/html/bug-gnulib/2012-12/msg00023.html
+     https://lists.gnu.org/r/bug-gnulib/2012-12/msg00023.html
 
      DragonFly; see
      http://muscles.dragonflybsd.org/bulk/bleeding-edge-potential/latest-per-pkg/ah-tty-0.3.12.log
 
      FreeBSD; see:
-     http://lists.gnu.org/archive/html/bug-gnulib/2014-07/msg00104.html
+     https://lists.gnu.org/r/bug-gnulib/2014-07/msg00104.html
 
    OS X 10.9 has a macro __header_inline indicating the bug is fixed for C and
-   for clang but remains for g++; see <http://trac.macports.org/ticket/41033>.
+   for clang but remains for g++; see <https://trac.macports.org/ticket/41033>.
    Assume DragonFly and FreeBSD will be similar.  */
 #if (((defined __APPLE__ && defined __MACH__) \
       || defined __DragonFly__ || defined __FreeBSD__) \
diff --git a/gnulib-m4/fcntl-o.m4 b/gnulib-m4/fcntl-o.m4
index 24fcf88d..b388d893 100644
--- a/gnulib-m4/fcntl-o.m4
+++ b/gnulib-m4/fcntl-o.m4
@@ -1,5 +1,5 @@
-# fcntl-o.m4 serial 4
-dnl Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc.
+# fcntl-o.m4 serial 5
+dnl Copyright (C) 2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -18,6 +18,7 @@ AC_DEFUN([gl_FCNTL_O_FLAGS],
     [AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])],
     [AC_REQUIRE([AC_GNU_SOURCE])])
 
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_CHECK_HEADERS_ONCE([unistd.h])
   AC_CHECK_FUNCS_ONCE([symlink])
   AC_CACHE_CHECK([for working fcntl.h], [gl_cv_header_working_fcntl_h],
@@ -116,7 +117,13 @@ AC_DEFUN([gl_FCNTL_O_FLAGS],
         68) gl_cv_header_working_fcntl_h='no (bad O_NOATIME, O_NOFOLLOW)';; #(
          *) gl_cv_header_working_fcntl_h='no';;
         esac],
-       [gl_cv_header_working_fcntl_h=cross-compiling])])
+       [case "$host_os" in
+                  # Guess 'no' on native Windows.
+          mingw*) gl_cv_header_working_fcntl_h='no' ;;
+          *)      gl_cv_header_working_fcntl_h=cross-compiling ;;
+        esac
+       ])
+    ])
 
   case $gl_cv_header_working_fcntl_h in #(
   *O_NOATIME* | no | cross-compiling) ac_val=0;; #(
diff --git a/gnulib-m4/fdopen.m4 b/gnulib-m4/fdopen.m4
index 685a1bb9..42f928ef 100644
--- a/gnulib-m4/fdopen.m4
+++ b/gnulib-m4/fdopen.m4
@@ -1,5 +1,5 @@
-# fdopen.m4 serial 3
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+# fdopen.m4 serial 4
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -8,10 +8,13 @@ AC_DEFUN([gl_FUNC_FDOPEN],
 [
   AC_REQUIRE([gl_STDIO_H_DEFAULTS])
   AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
-  AC_REQUIRE([gl_MSVC_INVAL])
-  if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
-    REPLACE_FDOPEN=1
-  else
+  m4_ifdef([gl_MSVC_INVAL], [
+    AC_REQUIRE([gl_MSVC_INVAL])
+    if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+      REPLACE_FDOPEN=1
+    fi
+  ])
+  if test $REPLACE_FDOPEN = 0; then
     dnl Test whether fdopen() sets errno when it fails due to a bad fd argument.
     AC_CACHE_CHECK([whether fdopen sets errno], [gl_cv_func_fdopen_works],
       [
diff --git a/gnulib-m4/flexmember.m4 b/gnulib-m4/flexmember.m4
index 155ae9b8..9d3b50d1 100644
--- a/gnulib-m4/flexmember.m4
+++ b/gnulib-m4/flexmember.m4
@@ -1,7 +1,7 @@
-# serial 4
+# serial 5
 # Check for flexible array member support.
 
-# Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc.
+# Copyright (C) 2006, 2009-2017 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -17,12 +17,15 @@ AC_DEFUN([AC_C_FLEXIBLE_ARRAY_MEMBER],
           [[#include <stdlib.h>
             #include <stdio.h>
             #include <stddef.h>
-            struct s { int n; double d[]; };]],
+            struct m { struct m *next, **list; char name[]; };
+            struct s { struct s *p; struct m *m; int n; double d[]; };]],
           [[int m = getchar ();
             size_t nbytes = offsetof (struct s, d) + m * sizeof (double);
             nbytes += sizeof (struct s) - 1;
             nbytes -= nbytes % sizeof (struct s);
             struct s *p = malloc (nbytes);
+            p->p = p;
+            p->m = NULL;
             p->d[0] = 0.0;
             return p->d != (double *) NULL;]])],
        [ac_cv_c_flexmember=yes],
diff --git a/gnulib-m4/float_h.m4 b/gnulib-m4/float_h.m4
index e2887eb5..24bd06ec 100644
--- a/gnulib-m4/float_h.m4
+++ b/gnulib-m4/float_h.m4
@@ -1,5 +1,5 @@
-# float_h.m4 serial 9
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+# float_h.m4 serial 12
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -14,7 +14,7 @@ AC_DEFUN([gl_FLOAT_H],
     aix* | beos* | openbsd* | mirbsd* | irix*)
       FLOAT_H=float.h
       ;;
-    freebsd*)
+    freebsd* | dragonfly*)
       case "$host_cpu" in
 changequote(,)dnl
         i[34567]86 )
@@ -24,10 +24,14 @@ changequote([,])dnl
         x86_64 )
           # On x86_64 systems, the C compiler may still be generating
           # 32-bit code.
-          AC_EGREP_CPP([yes],
-            [#if defined __LP64__ || defined __x86_64__ || defined __amd64__
-             yes
-             #endif],
+          AC_COMPILE_IFELSE(
+            [AC_LANG_SOURCE(
+               [[#if defined __LP64__ || defined __x86_64__ || defined __amd64__
+                  int ok;
+                 #else
+                  error fail
+                 #endif
+               ]])],
             [],
             [FLOAT_H=float.h])
           ;;
@@ -42,7 +46,7 @@ changequote([,])dnl
       ;;
   esac
   case "$host_os" in
-    aix* | freebsd* | linux*)
+    aix* | freebsd* | dragonfly* | linux*)
       if test -n "$FLOAT_H"; then
         REPLACE_FLOAT_LDBL=1
       fi
@@ -69,14 +73,20 @@ int main ()
         [gl_cv_func_itold_works=no],
         [case "$host" in
            sparc*-*-linux*)
-             AC_EGREP_CPP([yes],
-               [#if defined __LP64__ || defined __arch64__
-                yes
-                #endif],
+             AC_COMPILE_IFELSE(
+               [AC_LANG_SOURCE(
+                 [[#if defined __LP64__ || defined __arch64__
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
                [gl_cv_func_itold_works="guessing no"],
                [gl_cv_func_itold_works="guessing yes"])
              ;;
-           *) gl_cv_func_itold_works="guessing yes" ;;
+                   # Guess yes on native Windows.
+           mingw*) gl_cv_func_itold_works="guessing yes" ;;
+           *)      gl_cv_func_itold_works="guessing yes" ;;
          esac
         ])
     ])
diff --git a/gnulib-m4/fpieee.m4 b/gnulib-m4/fpieee.m4
index e11ac9f0..3d57112e 100644
--- a/gnulib-m4/fpieee.m4
+++ b/gnulib-m4/fpieee.m4
@@ -1,5 +1,5 @@
 # fpieee.m4 serial 2  -*- coding: utf-8 -*-
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -33,7 +33,7 @@ AC_DEFUN([gl_FP_IEEE],
     alpha*)
       # On Alpha systems, a compiler option provides the behaviour.
       # See the ieee(3) manual page, also available at
-      # <http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51B_HTML/MAN/MAN3/0600____.HTM>
+      # <https://backdrift.org/man/tru64/man3/ieee.3.html>
       if test -n "$GCC"; then
         # GCC has the option -mieee.
         # For full IEEE compliance (rarely needed), use option -mieee-with-inexact.
diff --git a/gnulib-m4/frexp.m4 b/gnulib-m4/frexp.m4
index 23f58216..425765be 100644
--- a/gnulib-m4/frexp.m4
+++ b/gnulib-m4/frexp.m4
@@ -1,5 +1,5 @@
-# frexp.m4 serial 15
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# frexp.m4 serial 16
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -164,8 +164,17 @@ int main()
         [gl_cv_func_frexp_works=yes],
         [gl_cv_func_frexp_works=no],
         [case "$host_os" in
-           netbsd* | irix* | mingw*) gl_cv_func_frexp_works="guessing no";;
-           *)                        gl_cv_func_frexp_works="guessing yes";;
+           netbsd* | irix*) gl_cv_func_frexp_works="guessing no" ;;
+           mingw*) # Guess yes with MSVC, no with mingw.
+             AC_EGREP_CPP([Good], [
+#ifdef _MSC_VER
+ Good
+#endif
+               ],
+               [gl_cv_func_frexp_works="guessing yes"],
+               [gl_cv_func_frexp_works="guessing no"])
+             ;;
+           *) gl_cv_func_frexp_works="guessing yes" ;;
          esac
         ])
     ])
diff --git a/gnulib-m4/frexpl.m4 b/gnulib-m4/frexpl.m4
index 0bc6afee..717aec01 100644
--- a/gnulib-m4/frexpl.m4
+++ b/gnulib-m4/frexpl.m4
@@ -1,5 +1,5 @@
-# frexpl.m4 serial 20
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# frexpl.m4 serial 21
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -131,7 +131,7 @@ AC_DEFUN([gl_FUNC_FREXPL_WORKS],
 # undef LDBL_MIN_EXP
 # define LDBL_MIN_EXP    (-16381)
 #endif
-#if defined __i386__ && defined __FreeBSD__
+#if defined __i386__ && (defined __FreeBSD__ || defined __DragonFly__)
 # undef LDBL_MIN_EXP
 # define LDBL_MIN_EXP    (-16381)
 #endif
diff --git a/gnulib-m4/fseterr.m4 b/gnulib-m4/fseterr.m4
index 45bed212..f445ce04 100644
--- a/gnulib-m4/fseterr.m4
+++ b/gnulib-m4/fseterr.m4
@@ -1,5 +1,5 @@
 # fseterr.m4 serial 1
-dnl Copyright (C) 2012-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2012-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/getpagesize.m4 b/gnulib-m4/getpagesize.m4
index 8902b7b5..f891200f 100644
--- a/gnulib-m4/getpagesize.m4
+++ b/gnulib-m4/getpagesize.m4
@@ -1,5 +1,5 @@
 # getpagesize.m4 serial 9
-dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2016 Free Software Foundation,
+dnl Copyright (C) 2002, 2004-2005, 2007, 2009-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gnulib-m4/getprogname.m4 b/gnulib-m4/getprogname.m4
index f027037f..efc06e78 100644
--- a/gnulib-m4/getprogname.m4
+++ b/gnulib-m4/getprogname.m4
@@ -1,6 +1,6 @@
 # getprogname.m4 - check for getprogname or replacements for it
 
-# Copyright (C) 2016 Free Software Foundation, Inc.
+# Copyright (C) 2016-2017 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/glibc21.m4 b/gnulib-m4/glibc21.m4
index dafebf50..2e30ed68 100644
--- a/gnulib-m4/glibc21.m4
+++ b/gnulib-m4/glibc21.m4
@@ -1,5 +1,5 @@
 # glibc21.m4 serial 5
-dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2016 Free Software Foundation,
+dnl Copyright (C) 2000-2002, 2004, 2008, 2010-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gnulib-m4/gnulib-cache.m4 b/gnulib-m4/gnulib-cache.m4
index d13b83ea..9fe2ea3b 100644
--- a/gnulib-m4/gnulib-cache.m4
+++ b/gnulib-m4/gnulib-cache.m4
@@ -1,4 +1,4 @@
-# Copyright (C) 2002-2016 Free Software Foundation, Inc.
+# Copyright (C) 2002-2017 Free Software Foundation, Inc.
 #
 # This file is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -11,7 +11,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License,
 # this file may be distributed as part of a program that
@@ -27,7 +27,7 @@
 
 
 # Specification in the form of a command-line invocation:
-#   gnulib-tool --import --local-dir=gnulib-local --lib=libunistring --source-base=lib --m4-base=gnulib-m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --with-tests --lgpl=3orGPLv2 --makefile-name=Makefile.gnulib --no-conditional-dependencies --libtool --macro-prefix=gl relocatable-lib-lgpl unicase/base unicase/empty-prefix-context unicase/empty-suffix-context unicase/locale-language unicase/tolower unicase/totitle unicase/toupper unicase/u16-casecmp unicase/u16-casecoll unicase/u16-casefold unicase/u16-casexfrm unicase/u16-ct-casefold unicase/u16-ct-tolower unicase/u16-ct-totitle unicase/u16-ct-toupper unicase/u16-is-cased unicase/u16-is-casefolded unicase/u16-is-lowercase unicase/u16-is-titlecase unicase/u16-is-uppercase unicase/u16-tolower unicase/u16-totitle unicase/u16-toupper unicase/u32-casecmp unicase/u32-casecoll unicase/u32-casefold unicase/u32-casexfrm unicase/u32-ct-casefold unicase/u32-ct-tolower unicase/u32-ct-totitle unicase/u32-ct-toupper unicase/u32-is-cased unicase/u32-is-casefolded unicase/u32-is-lowercase unicase/u32-is-titlecase unicase/u32-is-uppercase unicase/u32-tolower unicase/u32-totitle unicase/u32-toupper unicase/u8-casecmp unicase/u8-casecoll unicase/u8-casefold unicase/u8-casexfrm unicase/u8-ct-casefold unicase/u8-ct-tolower unicase/u8-ct-totitle unicase/u8-ct-toupper unicase/u8-is-cased unicase/u8-is-casefolded unicase/u8-is-lowercase unicase/u8-is-titlecase unicase/u8-is-uppercase unicase/u8-tolower unicase/u8-totitle unicase/u8-toupper unicase/ulc-casecmp unicase/ulc-casecoll unicase/ulc-casexfrm uniconv/base uniconv/u16-conv-from-enc uniconv/u16-conv-to-enc uniconv/u16-strconv-from-enc uniconv/u16-strconv-from-locale uniconv/u16-strconv-to-enc uniconv/u16-strconv-to-locale uniconv/u32-conv-from-enc uniconv/u32-conv-to-enc uniconv/u32-strconv-from-enc uniconv/u32-strconv-from-locale uniconv/u32-strconv-to-enc uniconv/u32-strconv-to-locale uniconv/u8-conv-from-enc uniconv/u8-conv-to-enc uniconv/u8-strconv-from-enc uniconv/u8-strconv-from-locale uniconv/u8-strconv-to-enc uniconv/u8-strconv-to-locale unictype/base unictype/bidiclass-all unictype/block-all unictype/category-all unictype/combining-class-all unictype/ctype-alnum unictype/ctype-alpha unictype/ctype-blank unictype/ctype-cntrl unictype/ctype-digit unictype/ctype-graph unictype/ctype-lower unictype/ctype-print unictype/ctype-punct unictype/ctype-space unictype/ctype-upper unictype/ctype-xdigit unictype/decimal-digit unictype/digit unictype/joininggroup-all unictype/joiningtype-all unictype/mirror unictype/numeric unictype/property-all unictype/scripts-all unictype/syntax-c-ident unictype/syntax-c-whitespace unictype/syntax-java-ident unictype/syntax-java-whitespace unigbrk/base unigbrk/u16-grapheme-breaks unigbrk/u16-grapheme-next unigbrk/u16-grapheme-prev unigbrk/u32-grapheme-breaks unigbrk/u32-grapheme-next unigbrk/u32-grapheme-prev unigbrk/u8-grapheme-breaks unigbrk/u8-grapheme-next unigbrk/u8-grapheme-prev unigbrk/uc-gbrk-prop unigbrk/uc-is-grapheme-break unigbrk/ulc-grapheme-breaks unilbrk/base unilbrk/u16-possible-linebreaks unilbrk/u16-width-linebreaks unilbrk/u32-possible-linebreaks unilbrk/u32-width-linebreaks unilbrk/u8-possible-linebreaks unilbrk/u8-width-linebreaks unilbrk/ulc-possible-linebreaks unilbrk/ulc-width-linebreaks uniname/base uniname/uniname uninorm/base uninorm/canonical-decomposition uninorm/composition uninorm/decomposition uninorm/filter uninorm/nfc uninorm/nfd uninorm/nfkc uninorm/nfkd uninorm/u16-normalize uninorm/u16-normcmp uninorm/u16-normcoll uninorm/u16-normxfrm uninorm/u32-normalize uninorm/u32-normcmp uninorm/u32-normcoll uninorm/u32-normxfrm uninorm/u8-normalize uninorm/u8-normcmp uninorm/u8-normcoll uninorm/u8-normxfrm unistdio/base unistdio/u16-asnprintf unistdio/u16-asprintf unistdio/u16-snprintf unistdio/u16-sprintf unistdio/u16-u16-asnprintf unistdio/u16-u16-asprintf unistdio/u16-u16-snprintf unistdio/u16-u16-sprintf unistdio/u16-u16-vasnprintf unistdio/u16-u16-vasprintf unistdio/u16-u16-vsnprintf unistdio/u16-u16-vsprintf unistdio/u16-vasnprintf unistdio/u16-vasprintf unistdio/u16-vsnprintf unistdio/u16-vsprintf unistdio/u32-asnprintf unistdio/u32-asprintf unistdio/u32-snprintf unistdio/u32-sprintf unistdio/u32-u32-asnprintf unistdio/u32-u32-asprintf unistdio/u32-u32-snprintf unistdio/u32-u32-sprintf unistdio/u32-u32-vasnprintf unistdio/u32-u32-vasprintf unistdio/u32-u32-vsnprintf unistdio/u32-u32-vsprintf unistdio/u32-vasnprintf unistdio/u32-vasprintf unistdio/u32-vsnprintf unistdio/u32-vsprintf unistdio/u8-asnprintf unistdio/u8-asprintf unistdio/u8-snprintf unistdio/u8-sprintf unistdio/u8-u8-asnprintf unistdio/u8-u8-asprintf unistdio/u8-u8-snprintf unistdio/u8-u8-sprintf unistdio/u8-u8-vasnprintf unistdio/u8-u8-vasprintf unistdio/u8-u8-vsnprintf unistdio/u8-u8-vsprintf unistdio/u8-vasnprintf unistdio/u8-vasprintf unistdio/u8-vsnprintf unistdio/u8-vsprintf unistdio/ulc-asnprintf unistdio/ulc-asprintf unistdio/ulc-fprintf unistdio/ulc-snprintf unistdio/ulc-sprintf unistdio/ulc-vasnprintf unistdio/ulc-vasprintf unistdio/ulc-vfprintf unistdio/ulc-vsnprintf unistdio/ulc-vsprintf unistr/base unistr/u16-check unistr/u16-chr unistr/u16-cmp unistr/u16-cmp2 unistr/u16-cpy unistr/u16-cpy-alloc unistr/u16-endswith unistr/u16-mblen unistr/u16-mbsnlen unistr/u16-mbtouc unistr/u16-mbtouc-unsafe unistr/u16-mbtoucr unistr/u16-move unistr/u16-next unistr/u16-prev unistr/u16-set unistr/u16-startswith unistr/u16-stpcpy unistr/u16-stpncpy unistr/u16-strcat unistr/u16-strchr unistr/u16-strcmp unistr/u16-strcoll unistr/u16-strcpy unistr/u16-strcspn unistr/u16-strdup unistr/u16-strlen unistr/u16-strmblen unistr/u16-strmbtouc unistr/u16-strncat unistr/u16-strncmp unistr/u16-strncpy unistr/u16-strnlen unistr/u16-strpbrk unistr/u16-strrchr unistr/u16-strspn unistr/u16-strstr unistr/u16-strtok unistr/u16-to-u32 unistr/u16-to-u8 unistr/u16-uctomb unistr/u32-check unistr/u32-chr unistr/u32-cmp unistr/u32-cmp2 unistr/u32-cpy unistr/u32-cpy-alloc unistr/u32-endswith unistr/u32-mblen unistr/u32-mbsnlen unistr/u32-mbtouc unistr/u32-mbtouc-unsafe unistr/u32-mbtoucr unistr/u32-move unistr/u32-next unistr/u32-prev unistr/u32-set unistr/u32-startswith unistr/u32-stpcpy unistr/u32-stpncpy unistr/u32-strcat unistr/u32-strchr unistr/u32-strcmp unistr/u32-strcoll unistr/u32-strcpy unistr/u32-strcspn unistr/u32-strdup unistr/u32-strlen unistr/u32-strmblen unistr/u32-strmbtouc unistr/u32-strncat unistr/u32-strncmp unistr/u32-strncpy unistr/u32-strnlen unistr/u32-strpbrk unistr/u32-strrchr unistr/u32-strspn unistr/u32-strstr unistr/u32-strtok unistr/u32-to-u16 unistr/u32-to-u8 unistr/u32-uctomb unistr/u8-check unistr/u8-chr unistr/u8-cmp unistr/u8-cmp2 unistr/u8-cpy unistr/u8-cpy-alloc unistr/u8-endswith unistr/u8-mblen unistr/u8-mbsnlen unistr/u8-mbtouc unistr/u8-mbtouc-unsafe unistr/u8-mbtoucr unistr/u8-move unistr/u8-next unistr/u8-prev unistr/u8-set unistr/u8-startswith unistr/u8-stpcpy unistr/u8-stpncpy unistr/u8-strcat unistr/u8-strchr unistr/u8-strcmp unistr/u8-strcoll unistr/u8-strcpy unistr/u8-strcspn unistr/u8-strdup unistr/u8-strlen unistr/u8-strmblen unistr/u8-strmbtouc unistr/u8-strncat unistr/u8-strncmp unistr/u8-strncpy unistr/u8-strnlen unistr/u8-strpbrk unistr/u8-strrchr unistr/u8-strspn unistr/u8-strstr unistr/u8-strtok unistr/u8-to-u16 unistr/u8-to-u32 unistr/u8-uctomb unitypes uniwbrk/base uniwbrk/u16-wordbreaks uniwbrk/u32-wordbreaks uniwbrk/u8-wordbreaks uniwbrk/ulc-wordbreaks uniwbrk/wordbreak-property uniwidth/base uniwidth/u16-strwidth uniwidth/u16-width uniwidth/u32-strwidth uniwidth/u32-width uniwidth/u8-strwidth uniwidth/u8-width uniwidth/width
+#   gnulib-tool --import --local-dir=gnulib-local --lib=libunistring --source-base=lib --m4-base=gnulib-m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --with-tests --lgpl=3orGPLv2 --makefile-name=Makefile.gnulib --no-conditional-dependencies --libtool --macro-prefix=gl relocatable-lib-lgpl unicase/base unicase/empty-prefix-context unicase/empty-suffix-context unicase/locale-language unicase/tolower unicase/totitle unicase/toupper unicase/u16-casecmp unicase/u16-casecoll unicase/u16-casefold unicase/u16-casexfrm unicase/u16-ct-casefold unicase/u16-ct-tolower unicase/u16-ct-totitle unicase/u16-ct-toupper unicase/u16-is-cased unicase/u16-is-casefolded unicase/u16-is-lowercase unicase/u16-is-titlecase unicase/u16-is-uppercase unicase/u16-tolower unicase/u16-totitle unicase/u16-toupper unicase/u32-casecmp unicase/u32-casecoll unicase/u32-casefold unicase/u32-casexfrm unicase/u32-ct-casefold unicase/u32-ct-tolower unicase/u32-ct-totitle unicase/u32-ct-toupper unicase/u32-is-cased unicase/u32-is-casefolded unicase/u32-is-lowercase unicase/u32-is-titlecase unicase/u32-is-uppercase unicase/u32-tolower unicase/u32-totitle unicase/u32-toupper unicase/u8-casecmp unicase/u8-casecoll unicase/u8-casefold unicase/u8-casexfrm unicase/u8-ct-casefold unicase/u8-ct-tolower unicase/u8-ct-totitle unicase/u8-ct-toupper unicase/u8-is-cased unicase/u8-is-casefolded unicase/u8-is-lowercase unicase/u8-is-titlecase unicase/u8-is-uppercase unicase/u8-tolower unicase/u8-totitle unicase/u8-toupper unicase/ulc-casecmp unicase/ulc-casecoll unicase/ulc-casexfrm uniconv/base uniconv/u16-conv-from-enc uniconv/u16-conv-to-enc uniconv/u16-strconv-from-enc uniconv/u16-strconv-from-locale uniconv/u16-strconv-to-enc uniconv/u16-strconv-to-locale uniconv/u32-conv-from-enc uniconv/u32-conv-to-enc uniconv/u32-strconv-from-enc uniconv/u32-strconv-from-locale uniconv/u32-strconv-to-enc uniconv/u32-strconv-to-locale uniconv/u8-conv-from-enc uniconv/u8-conv-to-enc uniconv/u8-strconv-from-enc uniconv/u8-strconv-from-locale uniconv/u8-strconv-to-enc uniconv/u8-strconv-to-locale unictype/base unictype/bidiclass-all unictype/block-all unictype/category-all unictype/combining-class-all unictype/ctype-alnum unictype/ctype-alpha unictype/ctype-blank unictype/ctype-cntrl unictype/ctype-digit unictype/ctype-graph unictype/ctype-lower unictype/ctype-print unictype/ctype-punct unictype/ctype-space unictype/ctype-upper unictype/ctype-xdigit unictype/decimal-digit unictype/digit unictype/joininggroup-all unictype/joiningtype-all unictype/mirror unictype/numeric unictype/property-all unictype/scripts-all unictype/syntax-c-ident unictype/syntax-c-whitespace unictype/syntax-java-ident unictype/syntax-java-whitespace unigbrk/base unigbrk/u16-grapheme-breaks unigbrk/u16-grapheme-next unigbrk/u16-grapheme-prev unigbrk/u32-grapheme-breaks unigbrk/u32-grapheme-next unigbrk/u32-grapheme-prev unigbrk/u8-grapheme-breaks unigbrk/u8-grapheme-next unigbrk/u8-grapheme-prev unigbrk/uc-gbrk-prop unigbrk/uc-grapheme-breaks unigbrk/uc-is-grapheme-break unigbrk/ulc-grapheme-breaks unilbrk/base unilbrk/u16-possible-linebreaks unilbrk/u16-width-linebreaks unilbrk/u32-possible-linebreaks unilbrk/u32-width-linebreaks unilbrk/u8-possible-linebreaks unilbrk/u8-width-linebreaks unilbrk/ulc-possible-linebreaks unilbrk/ulc-width-linebreaks uniname/base uniname/uniname uninorm/base uninorm/canonical-decomposition uninorm/composition uninorm/decomposition uninorm/filter uninorm/nfc uninorm/nfd uninorm/nfkc uninorm/nfkd uninorm/u16-normalize uninorm/u16-normcmp uninorm/u16-normcoll uninorm/u16-normxfrm uninorm/u32-normalize uninorm/u32-normcmp uninorm/u32-normcoll uninorm/u32-normxfrm uninorm/u8-normalize uninorm/u8-normcmp uninorm/u8-normcoll uninorm/u8-normxfrm unistdio/base unistdio/u16-asnprintf unistdio/u16-asprintf unistdio/u16-snprintf unistdio/u16-sprintf unistdio/u16-u16-asnprintf unistdio/u16-u16-asprintf unistdio/u16-u16-snprintf unistdio/u16-u16-sprintf unistdio/u16-u16-vasnprintf unistdio/u16-u16-vasprintf unistdio/u16-u16-vsnprintf unistdio/u16-u16-vsprintf unistdio/u16-vasnprintf unistdio/u16-vasprintf unistdio/u16-vsnprintf unistdio/u16-vsprintf unistdio/u32-asnprintf unistdio/u32-asprintf unistdio/u32-snprintf unistdio/u32-sprintf unistdio/u32-u32-asnprintf unistdio/u32-u32-asprintf unistdio/u32-u32-snprintf unistdio/u32-u32-sprintf unistdio/u32-u32-vasnprintf unistdio/u32-u32-vasprintf unistdio/u32-u32-vsnprintf unistdio/u32-u32-vsprintf unistdio/u32-vasnprintf unistdio/u32-vasprintf unistdio/u32-vsnprintf unistdio/u32-vsprintf unistdio/u8-asnprintf unistdio/u8-asprintf unistdio/u8-snprintf unistdio/u8-sprintf unistdio/u8-u8-asnprintf unistdio/u8-u8-asprintf unistdio/u8-u8-snprintf unistdio/u8-u8-sprintf unistdio/u8-u8-vasnprintf unistdio/u8-u8-vasprintf unistdio/u8-u8-vsnprintf unistdio/u8-u8-vsprintf unistdio/u8-vasnprintf unistdio/u8-vasprintf unistdio/u8-vsnprintf unistdio/u8-vsprintf unistdio/ulc-asnprintf unistdio/ulc-asprintf unistdio/ulc-fprintf unistdio/ulc-snprintf unistdio/ulc-sprintf unistdio/ulc-vasnprintf unistdio/ulc-vasprintf unistdio/ulc-vfprintf unistdio/ulc-vsnprintf unistdio/ulc-vsprintf unistr/base unistr/u16-check unistr/u16-chr unistr/u16-cmp unistr/u16-cmp2 unistr/u16-cpy unistr/u16-cpy-alloc unistr/u16-endswith unistr/u16-mblen unistr/u16-mbsnlen unistr/u16-mbtouc unistr/u16-mbtouc-unsafe unistr/u16-mbtoucr unistr/u16-move unistr/u16-next unistr/u16-prev unistr/u16-set unistr/u16-startswith unistr/u16-stpcpy unistr/u16-stpncpy unistr/u16-strcat unistr/u16-strchr unistr/u16-strcmp unistr/u16-strcoll unistr/u16-strcpy unistr/u16-strcspn unistr/u16-strdup unistr/u16-strlen unistr/u16-strmblen unistr/u16-strmbtouc unistr/u16-strncat unistr/u16-strncmp unistr/u16-strncpy unistr/u16-strnlen unistr/u16-strpbrk unistr/u16-strrchr unistr/u16-strspn unistr/u16-strstr unistr/u16-strtok unistr/u16-to-u32 unistr/u16-to-u8 unistr/u16-uctomb unistr/u32-check unistr/u32-chr unistr/u32-cmp unistr/u32-cmp2 unistr/u32-cpy unistr/u32-cpy-alloc unistr/u32-endswith unistr/u32-mblen unistr/u32-mbsnlen unistr/u32-mbtouc unistr/u32-mbtouc-unsafe unistr/u32-mbtoucr unistr/u32-move unistr/u32-next unistr/u32-prev unistr/u32-set unistr/u32-startswith unistr/u32-stpcpy unistr/u32-stpncpy unistr/u32-strcat unistr/u32-strchr unistr/u32-strcmp unistr/u32-strcoll unistr/u32-strcpy unistr/u32-strcspn unistr/u32-strdup unistr/u32-strlen unistr/u32-strmblen unistr/u32-strmbtouc unistr/u32-strncat unistr/u32-strncmp unistr/u32-strncpy unistr/u32-strnlen unistr/u32-strpbrk unistr/u32-strrchr unistr/u32-strspn unistr/u32-strstr unistr/u32-strtok unistr/u32-to-u16 unistr/u32-to-u8 unistr/u32-uctomb unistr/u8-check unistr/u8-chr unistr/u8-cmp unistr/u8-cmp2 unistr/u8-cpy unistr/u8-cpy-alloc unistr/u8-endswith unistr/u8-mblen unistr/u8-mbsnlen unistr/u8-mbtouc unistr/u8-mbtouc-unsafe unistr/u8-mbtoucr unistr/u8-move unistr/u8-next unistr/u8-prev unistr/u8-set unistr/u8-startswith unistr/u8-stpcpy unistr/u8-stpncpy unistr/u8-strcat unistr/u8-strchr unistr/u8-strcmp unistr/u8-strcoll unistr/u8-strcpy unistr/u8-strcspn unistr/u8-strdup unistr/u8-strlen unistr/u8-strmblen unistr/u8-strmbtouc unistr/u8-strncat unistr/u8-strncmp unistr/u8-strncpy unistr/u8-strnlen unistr/u8-strpbrk unistr/u8-strrchr unistr/u8-strspn unistr/u8-strstr unistr/u8-strtok unistr/u8-to-u16 unistr/u8-to-u32 unistr/u8-uctomb unitypes uniwbrk/base uniwbrk/u16-wordbreaks uniwbrk/u32-wordbreaks uniwbrk/u8-wordbreaks uniwbrk/ulc-wordbreaks uniwbrk/wordbreak-property uniwidth/base uniwidth/u16-strwidth uniwidth/u16-width uniwidth/u32-strwidth uniwidth/u32-width uniwidth/u8-strwidth uniwidth/u8-width uniwidth/width
 
 # Specification in the form of a few gnulib-tool.m4 macro invocations:
 gl_LOCAL_DIR([gnulib-local])
@@ -150,6 +150,7 @@ gl_MODULES([
   unigbrk/u8-grapheme-next
   unigbrk/u8-grapheme-prev
   unigbrk/uc-gbrk-prop
+  unigbrk/uc-grapheme-breaks
   unigbrk/uc-is-grapheme-break
   unigbrk/ulc-grapheme-breaks
   unilbrk/base
diff --git a/gnulib-m4/gnulib-common.m4 b/gnulib-m4/gnulib-common.m4
index f8454c8a..bea5a650 100644
--- a/gnulib-m4/gnulib-common.m4
+++ b/gnulib-m4/gnulib-common.m4
@@ -1,5 +1,5 @@
-# gnulib-common.m4 serial 36
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# gnulib-common.m4 serial 38
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -228,13 +228,13 @@ m4_ifndef([AS_VAR_IF],
 # This is like AC_PROG_CC_C99, except that
 # - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60,
 # - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>,
+#   <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00367.html>,
 #   but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>.
+#   <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00441.html>.
 # Remaining problems:
 # - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options
 #   to CC twice
-#   <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>.
+#   <https://lists.gnu.org/r/bug-gnulib/2011-09/msg00431.html>.
 # - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard.
 AC_DEFUN([gl_PROG_CC_C99],
 [
@@ -256,7 +256,8 @@ AC_DEFUN([gl_PROG_AR_RANLIB],
   dnl library formats. In particular, the GNU binutils programs ar and ranlib
   dnl produce libraries that work only with gcc, not with cc.
   AC_REQUIRE([AC_PROG_CC])
-  AC_BEFORE([$0], [AM_PROG_AR])
+  dnl The '][' hides this use from 'aclocal'.
+  AC_BEFORE([$0], [A][M_PROG_AR])
   AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler],
     [
       AC_EGREP_CPP([Amsterdam],
@@ -288,7 +289,9 @@ Amsterdam
     dnl __ACK__.  It may seem like its easier to avoid calling the macro here,
     dnl but we need to AC_SUBST both AR/ARFLAGS (thus those must have some good
     dnl default value and automake should usually know them).
-    m4_ifdef([AM_PROG_AR], [AM_PROG_AR], [:])
+    dnl
+    dnl The '][' hides this use from 'aclocal'.
+    m4_ifdef([A][M_PROG_AR], [A][M_PROG_AR], [:])
   fi
 
   dnl In case the code above has not helped with setting AR/ARFLAGS, use
@@ -456,7 +459,9 @@ m4_ifndef([AC_PROG_SED],
      else
        ac_cv_path_SED=$SED
      fi
+    ])
  SED="$ac_cv_path_SED"
  AC_SUBST([SED])dnl
  rm -f conftest.sed
-])])])
+])
+])
diff --git a/gnulib-m4/gnulib-comp.m4 b/gnulib-m4/gnulib-comp.m4
index cf33452c..f30bc4ab 100644
--- a/gnulib-m4/gnulib-comp.m4
+++ b/gnulib-m4/gnulib-comp.m4
@@ -1,5 +1,5 @@
 # DO NOT EDIT! GENERATED AUTOMATICALLY!
-# Copyright (C) 2002-2016 Free Software Foundation, Inc.
+# Copyright (C) 2002-2017 Free Software Foundation, Inc.
 #
 # This file is free software; you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -12,7 +12,7 @@
 # GNU General Public License for more details.
 #
 # You should have received a copy of the GNU General Public License
-# along with this file.  If not, see <http://www.gnu.org/licenses/>.
+# along with this file.  If not, see <https://www.gnu.org/licenses/>.
 #
 # As a special exception to the GNU General Public License,
 # this file may be distributed as part of a program that
@@ -51,6 +51,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module array-mergesort-tests:
   # Code from module btowc:
   # Code from module btowc-tests:
+  # Code from module builtin-expect:
   # Code from module c-ctype:
   # Code from module c-ctype-tests:
   # Code from module c-strcase:
@@ -95,6 +96,7 @@ AC_DEFUN([gl_EARLY],
   # Code from module gperf:
   # Code from module hard-locale:
   # Code from module havelib:
+  # Code from module host-cpu-c-abi:
   # Code from module iconv:
   # Code from module iconv-h:
   # Code from module iconv-h-tests:
@@ -107,6 +109,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module inttypes:
   # Code from module inttypes-incomplete:
   # Code from module inttypes-tests:
+  # Code from module isblank:
+  # Code from module isblank-tests:
   # Code from module isnand-nolibm:
   # Code from module isnand-nolibm-tests:
   # Code from module isnanf-nolibm:
@@ -152,15 +156,25 @@ AC_DEFUN([gl_EARLY],
   # Code from module printf-frexpl:
   # Code from module printf-frexpl-tests:
   # Code from module printf-safe:
+  # Code from module pthread_sigmask:
+  # Code from module pthread_sigmask-tests:
   # Code from module putenv:
+  # Code from module raise:
+  # Code from module raise-tests:
   # Code from module relocatable-lib-lgpl:
   # Code from module setenv:
   # Code from module setenv-tests:
   # Code from module setlocale:
   # Code from module setlocale-tests:
+  # Code from module signal-h:
+  # Code from module signal-h-tests:
   # Code from module signbit:
   # Code from module signbit-tests:
+  # Code from module sigprocmask:
+  # Code from module sigprocmask-tests:
   # Code from module size_max:
+  # Code from module sleep:
+  # Code from module sleep-tests:
   # Code from module snippet/_Noreturn:
   # Code from module snippet/arg-nonnull:
   # Code from module snippet/c++defs:
@@ -202,6 +216,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module thread-tests:
   # Code from module threadlib:
   gl_THREADLIB_EARLY
+  # Code from module time:
+  # Code from module time-tests:
   # Code from module unicase/base:
   # Code from module unicase/cased:
   # Code from module unicase/cased-tests:
@@ -723,6 +739,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module unigbrk/u8-grapheme-prev-tests:
   # Code from module unigbrk/uc-gbrk-prop:
   # Code from module unigbrk/uc-gbrk-prop-tests:
+  # Code from module unigbrk/uc-grapheme-breaks:
+  # Code from module unigbrk/uc-grapheme-breaks-tests:
   # Code from module unigbrk/uc-is-grapheme-break:
   # Code from module unigbrk/uc-is-grapheme-break-tests:
   # Code from module unigbrk/ulc-grapheme-breaks:
@@ -1134,6 +1152,8 @@ AC_DEFUN([gl_EARLY],
   # Code from module uniwidth/width-tests:
   # Code from module unsetenv:
   # Code from module unsetenv-tests:
+  # Code from module usleep:
+  # Code from module usleep-tests:
   # Code from module verify:
   # Code from module verify-tests:
   # Code from module wchar:
@@ -1169,6 +1189,7 @@ AC_DEFUN([gl_INIT],
   gl_COMMON
   gl_source_base='lib'
   gl_FUNC_ALLOCA
+  gl___BUILTIN_EXPECT
   gl_CONFIGMAKE_PREP
   gl_HEADER_ERRNO_H
   AC_REQUIRE([gl_EXTERN_INLINE])
@@ -1195,6 +1216,7 @@ AC_DEFUN([gl_INIT],
     AC_LIBOBJ([fseterr])
   fi
   gl_HARD_LOCALE
+  AC_REQUIRE([gl_HOST_CPU_C_ABI])
   AM_ICONV
   m4_ifdef([gl_ICONV_MODULE_INDICATOR],
     [gl_ICONV_MODULE_INDICATOR([iconv])])
@@ -1274,6 +1296,9 @@ AC_DEFUN([gl_INIT],
   gl_FUNC_PRINTF_FREXPL
   m4_divert_text([INIT_PREPARE], [gl_printf_safe=yes])
   gl_RELOCATABLE_LIBRARY
+  if test $RELOCATABLE = yes; then
+    AC_LIBOBJ([relocatable])
+  fi
   gl_SIGNBIT
   if test $REPLACE_SIGNBIT = 1; then
     AC_LIBOBJ([signbitf])
@@ -1316,60 +1341,60 @@ AC_DEFUN([gl_INIT],
   gl_LIBUNISTRING_MODULE([0.9.1], [unicase/empty-suffix-context])
   AC_REQUIRE([AC_C_INLINE])
   gl_LIBUNISTRING_MODULE([0.9.3], [unicase/locale-language])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-casecmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-casecoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-casexfrm])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-ct-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-ct-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-ct-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-ct-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-is-cased])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-is-casefolded])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-is-lowercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-is-titlecase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-is-uppercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u16-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-casecmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-casecoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-casexfrm])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-ct-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-ct-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-ct-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-ct-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-is-cased])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-is-casefolded])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-is-lowercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-is-titlecase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-is-uppercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u32-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-casecmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-casecoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-casexfrm])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-ct-casefold])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-ct-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-ct-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-ct-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-is-cased])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-is-casefolded])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-is-lowercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-is-titlecase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-is-uppercase])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-tolower])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-totitle])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/u8-toupper])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/ulc-casecmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/ulc-casecoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unicase/ulc-casexfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-casecmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-casecoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-casexfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-ct-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-ct-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-ct-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-ct-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-is-cased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-is-casefolded])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-is-lowercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-is-titlecase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-is-uppercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u16-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-casecmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-casecoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-casexfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-ct-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-ct-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-ct-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-ct-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-is-cased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-is-casefolded])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-is-lowercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-is-titlecase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-is-uppercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u32-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-casecmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-casecoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-casexfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-ct-casefold])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-ct-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-ct-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-ct-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-is-cased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-is-casefolded])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-is-lowercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-is-titlecase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-is-uppercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-tolower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-totitle])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/u8-toupper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/ulc-casecmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/ulc-casecoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unicase/ulc-casexfrm])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [uniconv.h])
   AC_REQUIRE([gl_BIGENDIAN])
   gl_LIBUNISTRING_MODULE([0.9], [uniconv/u16-conv-from-enc])
@@ -1393,343 +1418,345 @@ AC_DEFUN([gl_INIT],
   gl_LIBUNISTRING_MODULE([0.9], [uniconv/u8-strconv-to-enc])
   gl_LIBUNISTRING_MODULE([0.9], [uniconv/u8-strconv-to-locale])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unictype.h])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/bidiclass-byname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/bidiclass-longname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/bidiclass-name])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/bidiclass-of])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/bidiclass-test])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/block-list])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/block-test])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-C])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Cc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Cf])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Cn])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Co])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Cs])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-L])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-LC])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Ll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Lm])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Lo])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Lt])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Lu])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-M])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Mc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Me])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Mn])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-N])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Nd])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Nl])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-No])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-P])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Pc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Pd])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Pe])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Pf])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Pi])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Po])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Ps])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-S])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Sc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Sk])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Sm])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-So])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Z])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Zl])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Zp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-Zs])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-and])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-and-not])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-byname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/category-longname])
-  gl_LIBUNISTRING_MODULE([0.9], [unictype/category-name])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/category-none])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/bidiclass-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/bidiclass-longname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/bidiclass-name])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/bidiclass-of])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/bidiclass-test])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/block-list])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/block-test])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-C])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Cc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Cf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Cn])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Co])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Cs])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-L])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-LC])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Ll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Lm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Lo])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Lt])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Lu])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-M])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Mc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Me])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Mn])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-N])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Nd])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Nl])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-No])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-P])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Pc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Pd])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Pe])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Pf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Pi])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Po])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Ps])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-S])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Sc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Sk])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Sm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-So])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Z])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Zl])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Zp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-Zs])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-and])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-and-not])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-longname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-name])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-none])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-of])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/category-or])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-of])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-or])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/category-test])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/combining-class])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/combining-class-byname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/combining-class-longname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/combining-class-name])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/category-test])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/combining-class])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/combining-class-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/combining-class-longname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/combining-class-name])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-alnum])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-alnum])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-alpha])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-alpha])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-blank])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-blank])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-cntrl])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-cntrl])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-graph])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-graph])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-lower])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-lower])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-print])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-print])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-punct])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-punct])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-space])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-space])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-upper])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-upper])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/ctype-xdigit])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/decimal-digit])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/digit])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/joininggroup-byname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/joininggroup-name])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/joininggroup-of])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/joiningtype-byname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/joiningtype-longname])
-  gl_LIBUNISTRING_MODULE([0.9.5], [unictype/joiningtype-name])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/joiningtype-of])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/mirror])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/numeric])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/ctype-xdigit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/decimal-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joininggroup-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joininggroup-name])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joininggroup-of])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joiningtype-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joiningtype-longname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joiningtype-name])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/joiningtype-of])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/mirror])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/numeric])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-alphabetic])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-alphabetic])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-ascii-hex-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-ascii-hex-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-arabic-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-arabic-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-arabic-right-to-left])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-arabic-right-to-left])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-block-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-block-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-boundary-neutral])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-boundary-neutral])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-common-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-common-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-control])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-control])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-embedding-or-override])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-embedding-or-override])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-eur-num-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-eur-num-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-eur-num-terminator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-eur-num-terminator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-european-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-european-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-hebrew-right-to-left])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-hebrew-right-to-left])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-left-to-right])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-left-to-right])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-non-spacing-mark])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-non-spacing-mark])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-other-neutral])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-other-neutral])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-pdf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-pdf])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-segment-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-segment-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-bidi-whitespace])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-byname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-bidi-whitespace])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-byname])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-case-ignorable])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-case-ignorable])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-cased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-cased])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-changes-when-casefolded])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-changes-when-casefolded])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-changes-when-casemapped])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-changes-when-casemapped])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-changes-when-lowercased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-changes-when-lowercased])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-changes-when-titlecased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-changes-when-titlecased])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-changes-when-uppercased])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-changes-when-uppercased])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-combining])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-combining])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-composite])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-composite])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-currency-symbol])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-currency-symbol])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-dash])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-dash])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-decimal-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-decimal-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-default-ignorable-code-point])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-default-ignorable-code-point])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-deprecated])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-deprecated])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-diacritic])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-diacritic])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-extender])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-extender])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-format-control])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-format-control])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-grapheme-base])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-grapheme-base])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-grapheme-extend])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-grapheme-extend])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-grapheme-link])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-grapheme-link])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-hex-digit])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-hex-digit])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-hyphen])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-hyphen])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-id-continue])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-id-continue])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-id-start])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-id-start])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-ideographic])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-ideographic])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-ids-binary-operator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-ids-binary-operator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-ids-trinary-operator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-ids-trinary-operator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-ignorable-control])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-ignorable-control])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-iso-control])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-iso-control])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-join-control])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-join-control])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-left-of-pair])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-left-of-pair])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-line-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-line-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-logical-order-exception])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-logical-order-exception])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-lowercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-lowercase])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-math])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-math])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-non-break])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-non-break])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-not-a-character])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-not-a-character])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-numeric])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-numeric])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-alphabetic])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-alphabetic])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-default-ignorable-code-point])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-default-ignorable-code-point])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-grapheme-extend])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-grapheme-extend])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-id-continue])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-id-continue])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-id-start])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-id-start])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-lowercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-lowercase])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-math])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-math])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-other-uppercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-other-uppercase])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-paired-punctuation])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-paired-punctuation])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-paragraph-separator])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-paragraph-separator])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-pattern-syntax])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-pattern-syntax])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-pattern-white-space])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-pattern-white-space])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-private-use])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-private-use])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-punctuation])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-punctuation])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-quotation-mark])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-quotation-mark])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-radical])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-radical])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-sentence-terminal])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-sentence-terminal])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-soft-dotted])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-soft-dotted])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-space])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-space])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-terminal-punctuation])
-  gl_LIBUNISTRING_MODULE([0.9], [unictype/property-test])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-terminal-punctuation])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-test])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-titlecase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-titlecase])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-unassigned-code-value])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-unassigned-code-value])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-unified-ideograph])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-unified-ideograph])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-uppercase])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-uppercase])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-variation-selector])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-variation-selector])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-white-space])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-white-space])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-xid-continue])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-xid-continue])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-xid-start])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-xid-start])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/property-zero-width])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/scripts])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/property-zero-width])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/scripts])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/syntax-c-ident])
-  gl_LIBUNISTRING_MODULE([0.9], [unictype/syntax-c-whitespace])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/syntax-c-ident])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/syntax-c-whitespace])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unictype/syntax-java-ident])
-  gl_LIBUNISTRING_MODULE([0.9], [unictype/syntax-java-whitespace])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/syntax-java-ident])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unictype/syntax-java-whitespace])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unigbrk.h])
   gl_MODULE_INDICATOR([unigbrk/u16-grapheme-breaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u16-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u16-grapheme-breaks])
   gl_MODULE_INDICATOR([unigbrk/u16-grapheme-next])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u16-grapheme-next])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u16-grapheme-next])
   gl_MODULE_INDICATOR([unigbrk/u16-grapheme-prev])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u16-grapheme-prev])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u16-grapheme-prev])
   gl_MODULE_INDICATOR([unigbrk/u32-grapheme-breaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u32-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u32-grapheme-breaks])
   gl_MODULE_INDICATOR([unigbrk/u32-grapheme-next])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u32-grapheme-next])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u32-grapheme-next])
   gl_MODULE_INDICATOR([unigbrk/u32-grapheme-prev])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u32-grapheme-prev])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u32-grapheme-prev])
   gl_MODULE_INDICATOR([unigbrk/u8-grapheme-breaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u8-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u8-grapheme-breaks])
   gl_MODULE_INDICATOR([unigbrk/u8-grapheme-next])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u8-grapheme-next])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u8-grapheme-next])
   gl_MODULE_INDICATOR([unigbrk/u8-grapheme-prev])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/u8-grapheme-prev])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/uc-gbrk-prop])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/uc-is-grapheme-break])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/u8-grapheme-prev])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/uc-gbrk-prop])
+  gl_MODULE_INDICATOR([unigbrk/uc-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/uc-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/uc-is-grapheme-break])
   gl_MODULE_INDICATOR([unigbrk/ulc-grapheme-breaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unigbrk/ulc-grapheme-breaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unigbrk/ulc-grapheme-breaks])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unilbrk.h])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u16-possible-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u16-width-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u32-possible-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u32-width-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u8-possible-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/u8-width-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/ulc-possible-linebreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [unilbrk/ulc-width-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u16-possible-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u16-width-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u32-possible-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u32-width-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u8-possible-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/u8-width-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/ulc-possible-linebreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unilbrk/ulc-width-linebreaks])
   gl_LIBUNISTRING_LIBHEADER([0.9.5], [uniname.h])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniname/uniname])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniname/uniname])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [uninorm.h])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/canonical-decomposition])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/composition])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/canonical-decomposition])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/composition])
   gl_LIBUNISTRING_MODULE([0.9.5], [uninorm/decomposing-form])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/decomposition])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/decomposition])
   AC_REQUIRE([AC_C_INLINE])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/filter])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/nfc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/nfd])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/nfkc])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/nfkd])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/filter])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/nfc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/nfd])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/nfkc])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/nfkd])
   gl_MODULE_INDICATOR_FOR_TESTS([uninorm/u16-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u16-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u16-normcmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u16-normcoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u16-normxfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u16-normalize])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u16-normcmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u16-normcoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u16-normxfrm])
   gl_MODULE_INDICATOR_FOR_TESTS([uninorm/u32-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u32-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u32-normcmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u32-normcoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u32-normxfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u32-normalize])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u32-normcmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u32-normcoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u32-normxfrm])
   gl_MODULE_INDICATOR_FOR_TESTS([uninorm/u8-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u8-normalize])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u8-normcmp])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u8-normcoll])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uninorm/u8-normxfrm])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u8-normalize])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u8-normcmp])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u8-normcoll])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uninorm/u8-normxfrm])
   gl_UNISTD_H
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unistdio.h])
   gl_PREREQ_PRINTF_ARGS
@@ -1790,18 +1817,18 @@ AC_DEFUN([gl_INIT],
   gl_LIBUNISTRING_MODULE([0.9], [unistdio/u8-vasprintf])
   gl_LIBUNISTRING_MODULE([0.9], [unistdio/u8-vsnprintf])
   gl_LIBUNISTRING_MODULE([0.9], [unistdio/u8-vsprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-asnprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-asprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-fprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-asnprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-asprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-fprintf])
   gl_PREREQ_PRINTF_PARSE
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-snprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-sprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-snprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-sprintf])
   gl_PREREQ_VASNPRINTF_WITH_EXTRAS
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-vasnprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-vasprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-vfprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-vsnprintf])
-  gl_LIBUNISTRING_MODULE([0.9], [unistdio/ulc-vsprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-vasnprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-vasprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-vfprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-vsnprintf])
+  gl_LIBUNISTRING_MODULE([0.9.8], [unistdio/ulc-vsprintf])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unistr.h])
   gl_LIBUNISTRING_MODULE([0.9], [unistr/u16-check])
   gl_LIBUNISTRING_MODULE([0.9], [unistr/u16-chr])
@@ -1942,19 +1969,19 @@ AC_DEFUN([gl_INIT],
   gl_LIBUNISTRING_MODULE([0.9], [unistr/u8-uctomb])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [unitypes.h])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [uniwbrk.h])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwbrk/u16-wordbreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwbrk/u32-wordbreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwbrk/u8-wordbreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwbrk/ulc-wordbreaks])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwbrk/wordbreak-property])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwbrk/u16-wordbreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwbrk/u32-wordbreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwbrk/u8-wordbreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwbrk/ulc-wordbreaks])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwbrk/wordbreak-property])
   gl_LIBUNISTRING_LIBHEADER([0.9.4], [uniwidth.h])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u16-strwidth])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u16-width])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u32-strwidth])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u32-width])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u8-strwidth])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/u8-width])
-  gl_LIBUNISTRING_MODULE([0.9.6], [uniwidth/width])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u16-strwidth])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u16-width])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u32-strwidth])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u32-width])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u8-strwidth])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/u8-width])
+  gl_LIBUNISTRING_MODULE([0.9.8], [uniwidth/width])
   gl_WCHAR_H
   gl_WCTYPE_H
   gl_FUNC_WCWIDTH
@@ -2048,6 +2075,11 @@ changequote([, ])dnl
   AC_SUBST([LTLIBINTL])
   gl_INTTYPES_H
   gl_INTTYPES_INCOMPLETE
+  gl_FUNC_ISBLANK
+  if test $HAVE_ISBLANK = 0; then
+    AC_LIBOBJ([isblank])
+  fi
+  gl_CTYPE_MODULE_INDICATOR([isblank])
   gl_DOUBLE_EXPONENT_LOCATION
   gl_FLOAT_EXPONENT_LOCATION
   gl_LONG_DOUBLE_EXPONENT_LOCATION
@@ -2055,6 +2087,7 @@ changequote([, ])dnl
   gl_LOCALE_H
   AC_CHECK_FUNCS_ONCE([newlocale])
   AC_CHECK_FUNCS_ONCE([newlocale])
+  AC_CHECK_HEADERS_ONCE([semaphore.h])
   gt_LOCALE_FR
   gt_LOCALE_FR_UTF8
   gt_LOCALE_JA
@@ -2078,12 +2111,25 @@ changequote([, ])dnl
   if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
     AC_LIBOBJ([msvc-nothrow])
   fi
+  gl_MODULE_INDICATOR([msvc-nothrow])
+  gl_FUNC_PTHREAD_SIGMASK
+  if test $HAVE_PTHREAD_SIGMASK = 0 || test $REPLACE_PTHREAD_SIGMASK = 1; then
+    AC_LIBOBJ([pthread_sigmask])
+    gl_PREREQ_PTHREAD_SIGMASK
+  fi
+  gl_SIGNAL_MODULE_INDICATOR([pthread_sigmask])
   gl_FUNC_PUTENV
   if test $REPLACE_PUTENV = 1; then
     AC_LIBOBJ([putenv])
     gl_PREREQ_PUTENV
   fi
   gl_STDLIB_MODULE_INDICATOR([putenv])
+  gl_FUNC_RAISE
+  if test $HAVE_RAISE = 0 || test $REPLACE_RAISE = 1; then
+    AC_LIBOBJ([raise])
+    gl_PREREQ_RAISE
+  fi
+  gl_SIGNAL_MODULE_INDICATOR([raise])
   gl_FUNC_SETENV
   if test $HAVE_SETENV = 0 || test $REPLACE_SETENV = 1; then
     AC_LIBOBJ([setenv])
@@ -2099,9 +2145,22 @@ changequote([, ])dnl
   gt_LOCALE_FR_UTF8
   gt_LOCALE_JA
   gt_LOCALE_ZH_CN
+  gl_SIGNAL_H
   AC_REQUIRE([gl_FLOAT_EXPONENT_LOCATION])
   AC_REQUIRE([gl_DOUBLE_EXPONENT_LOCATION])
   AC_REQUIRE([gl_LONG_DOUBLE_EXPONENT_LOCATION])
+  gl_SIGNALBLOCKING
+  if test $HAVE_POSIX_SIGNALBLOCKING = 0; then
+    AC_LIBOBJ([sigprocmask])
+    gl_PREREQ_SIGPROCMASK
+  fi
+  gl_SIGNAL_MODULE_INDICATOR([sigprocmask])
+  gl_FUNC_SLEEP
+  if test $HAVE_SLEEP = 0 || test $REPLACE_SLEEP = 1; then
+    AC_LIBOBJ([sleep])
+  fi
+  gl_UNISTD_MODULE_INDICATOR([sleep])
+  AC_CHECK_DECLS_ONCE([alarm])
   gl_STDALIGN_H
   AC_REQUIRE([gt_TYPE_WCHAR_T])
   AC_REQUIRE([gt_TYPE_WINT_T])
@@ -2126,6 +2185,7 @@ changequote([, ])dnl
   AC_CHECK_HEADERS_ONCE([sys/mman.h])
   AC_CHECK_FUNCS_ONCE([mprotect])
   gl_THREAD
+  gl_HEADER_TIME_H
   gt_LOCALE_FR
   gt_LOCALE_FR_UTF8
   gt_LOCALE_JA
@@ -2221,6 +2281,11 @@ changequote([, ])dnl
     gl_PREREQ_UNSETENV
   fi
   gl_STDLIB_MODULE_INDICATOR([unsetenv])
+  gl_FUNC_USLEEP
+  if test $HAVE_USLEEP = 0 || test $REPLACE_USLEEP = 1; then
+    AC_LIBOBJ([usleep])
+  fi
+  gl_UNISTD_MODULE_INDICATOR([usleep])
   gl_FUNC_WCRTOMB
   if test $HAVE_WCRTOMB = 0 || test $REPLACE_WCRTOMB = 1; then
     AC_LIBOBJ([wcrtomb])
@@ -2338,16 +2403,14 @@ AC_DEFUN([gltests_LIBSOURCES], [
 # gnulib-tool and may be removed by future gnulib-tool invocations.
 AC_DEFUN([gl_FILE_LIST], [
   build-aux/config.rpath
-  build-aux/snippet/_Noreturn.h
-  build-aux/snippet/arg-nonnull.h
-  build-aux/snippet/c++defs.h
-  build-aux/snippet/unused-parameter.h
-  build-aux/snippet/warn-on-use.h
   doc/relocatable.texi
+  lib/_Noreturn.h
   lib/alloca.in.h
   lib/amemxfrm.c
   lib/amemxfrm.h
+  lib/arg-nonnull.h
   lib/array-mergesort.h
+  lib/c++defs.h
   lib/c-ctype.c
   lib/c-ctype.h
   lib/c-strcase.h
@@ -2425,6 +2488,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/ref-del.sin
   lib/relocatable.c
   lib/relocatable.h
+  lib/relocatable.valgrind
   lib/signbitd.c
   lib/signbitf.c
   lib/signbitl.c
@@ -2461,7 +2525,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/unicase/simple-mapping.h
   lib/unicase/special-casing-table.gperf
   lib/unicase/special-casing.c
-  lib/unicase/special-casing.h
+  lib/unicase/special-casing.in.h
   lib/unicase/tocasefold.c
   lib/unicase/tocasefold.h
   lib/unicase/tolower.c
@@ -2897,6 +2961,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/unictype/sy_java_whitespace.c
   lib/unigbrk.in.h
   lib/unigbrk/gbrkprop.h
+  lib/unigbrk/u-grapheme-breaks.h
   lib/unigbrk/u16-grapheme-breaks.c
   lib/unigbrk/u16-grapheme-next.c
   lib/unigbrk/u16-grapheme-prev.c
@@ -2907,6 +2972,7 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/unigbrk/u8-grapheme-next.c
   lib/unigbrk/u8-grapheme-prev.c
   lib/unigbrk/uc-gbrk-prop.c
+  lib/unigbrk/uc-grapheme-breaks.c
   lib/unigbrk/uc-is-grapheme-break.c
   lib/unigbrk/ulc-grapheme-breaks.c
   lib/unilbrk.in.h
@@ -3210,18 +3276,23 @@ AC_DEFUN([gl_FILE_LIST], [
   lib/uniwidth/u8-strwidth.c
   lib/uniwidth/u8-width.c
   lib/uniwidth/width.c
+  lib/unused-parameter.h
   lib/vasnprintf.c
   lib/verify.h
+  lib/warn-on-use.h
   lib/wchar.in.h
   lib/wctype-h.c
   lib/wctype.in.h
   lib/wcwidth.c
+  lib/xalloc-oversized.h
   lib/xsize.c
   lib/xsize.h
   m4/00gnulib.m4
   m4/absolute-header.m4
   m4/alloca.m4
+  m4/asm-underscore.m4
   m4/btowc.m4
+  m4/builtin-expect.m4
   m4/codeset.m4
   m4/configmake.m4
   m4/ctype.m4
@@ -3249,6 +3320,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/glibc21.m4
   m4/gnulib-common.m4
   m4/hard-locale.m4
+  m4/host-cpu-c-abi.m4
   m4/iconv.m4
   m4/iconv_h.m4
   m4/iconv_open.m4
@@ -3259,6 +3331,7 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/inttypes-pri.m4
   m4/inttypes.m4
   m4/inttypes_h.m4
+  m4/isblank.m4
   m4/isnand.m4
   m4/isnanf.m4
   m4/isnanl.m4
@@ -3301,12 +3374,18 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/printf-frexp.m4
   m4/printf-frexpl.m4
   m4/printf.m4
+  m4/pthread_rwlock_rdlock.m4
+  m4/pthread_sigmask.m4
   m4/putenv.m4
+  m4/raise.m4
   m4/relocatable-lib.m4
   m4/setenv.m4
   m4/setlocale.m4
+  m4/signal_h.m4
+  m4/signalblocking.m4
   m4/signbit.m4
   m4/size_max.m4
+  m4/sleep.m4
   m4/ssize_t.m4
   m4/stdalign.m4
   m4/stdbool.m4
@@ -3323,7 +3402,9 @@ AC_DEFUN([gl_FILE_LIST], [
   m4/sys_types_h.m4
   m4/thread.m4
   m4/threadlib.m4
+  m4/time_h.m4
   m4/unistd_h.m4
+  m4/usleep.m4
   m4/vasnprintf.m4
   m4/warn-on-use.m4
   m4/wchar_h.m4
@@ -3373,6 +3454,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-init.sh
   tests/test-intprops.c
   tests/test-inttypes.c
+  tests/test-isblank.c
   tests/test-isnand-nolibm.c
   tests/test-isnand.h
   tests/test-isnanf-nolibm.c
@@ -3404,12 +3486,19 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-memchr.c
   tests/test-printf-frexp.c
   tests/test-printf-frexpl.c
+  tests/test-pthread_sigmask1.c
+  tests/test-pthread_sigmask2.c
+  tests/test-raise.c
+  tests/test-rwlock1.c
   tests/test-setenv.c
   tests/test-setlocale1.c
   tests/test-setlocale1.sh
   tests/test-setlocale2.c
   tests/test-setlocale2.sh
+  tests/test-signal-h.c
   tests/test-signbit.c
+  tests/test-sigprocmask.c
+  tests/test-sleep.c
   tests/test-stdalign.c
   tests/test-stdbool.c
   tests/test-stddef.c
@@ -3426,8 +3515,11 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/test-sys_wait.h
   tests/test-thread_create.c
   tests/test-thread_self.c
+  tests/test-time.c
   tests/test-unistd.c
   tests/test-unsetenv.c
+  tests/test-usleep.c
+  tests/test-verify-try.c
   tests/test-verify.c
   tests/test-verify.sh
   tests/test-wchar.c
@@ -3705,6 +3797,8 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/unigbrk/test-u8-grapheme-prev.c
   tests/unigbrk/test-uc-gbrk-prop.c
   tests/unigbrk/test-uc-gbrk-prop.h
+  tests/unigbrk/test-uc-grapheme-breaks.c
+  tests/unigbrk/test-uc-grapheme-breaks.sh
   tests/unigbrk/test-uc-is-grapheme-break.c
   tests/unigbrk/test-uc-is-grapheme-break.sh
   tests/unigbrk/test-ulc-grapheme-breaks.c
@@ -3957,8 +4051,11 @@ AC_DEFUN([gl_FILE_LIST], [
   tests/uniwidth/test-uc_width2.c
   tests/uniwidth/test-uc_width2.sh
   tests/zerosize-ptr.h
+  tests=lib/_Noreturn.h
+  tests=lib/arg-nonnull.h
   tests=lib/basename-lgpl.c
   tests=lib/btowc.c
+  tests=lib/c++defs.h
   tests=lib/ctype.in.h
   tests=lib/dirname-lgpl.c
   tests=lib/dirname.h
@@ -3977,6 +4074,7 @@ AC_DEFUN([gl_FILE_LIST], [
   tests=lib/glthread/yield.h
   tests=lib/intprops.h
   tests=lib/inttypes.in.h
+  tests=lib/isblank.c
   tests=lib/locale.in.h
   tests=lib/mbtowc-impl.h
   tests=lib/mbtowc.c
@@ -3984,22 +4082,30 @@ AC_DEFUN([gl_FILE_LIST], [
   tests=lib/msvc-inval.h
   tests=lib/msvc-nothrow.c
   tests=lib/msvc-nothrow.h
+  tests=lib/pthread_sigmask.c
   tests=lib/putenv.c
+  tests=lib/raise.c
   tests=lib/setenv.c
   tests=lib/setlocale.c
+  tests=lib/signal.in.h
+  tests=lib/sigprocmask.c
+  tests=lib/sleep.c
   tests=lib/stdalign.in.h
   tests=lib/stdio.in.h
   tests=lib/strerror-override.c
   tests=lib/strerror-override.h
   tests=lib/strerror.c
   tests=lib/stripslash.c
+  tests=lib/time.in.h
   tests=lib/unsetenv.c
+  tests=lib/unused-parameter.h
+  tests=lib/usleep.c
+  tests=lib/warn-on-use.h
   tests=lib/wcrtomb.c
   tests=lib/wctob.c
   tests=lib/wctomb-impl.h
   tests=lib/wctomb.c
   tests=lib/xalloc-die.c
-  tests=lib/xalloc-oversized.h
   tests=lib/xalloc.h
   tests=lib/xmalloc.c
 ])
diff --git a/gnulib-m4/hard-locale.m4 b/gnulib-m4/hard-locale.m4
index 4661bfc5..d79acd65 100644
--- a/gnulib-m4/hard-locale.m4
+++ b/gnulib-m4/hard-locale.m4
@@ -1,5 +1,5 @@
 # hard-locale.m4 serial 8
-dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/host-cpu-c-abi.m4 b/gnulib-m4/host-cpu-c-abi.m4
new file mode 100644
index 00000000..9370c318
--- /dev/null
+++ b/gnulib-m4/host-cpu-c-abi.m4
@@ -0,0 +1,369 @@
+# host-cpu-c-abi.m4 serial 8
+dnl Copyright (C) 2002-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible and Sam Steingold.
+
+dnl Sets the HOST_CPU variable to the canonical name of the CPU.
+dnl Sets the HOST_CPU_C_ABI variable to the canonical name of the CPU with its
+dnl C language ABI (application binary interface).
+dnl Also defines __${HOST_CPU}__ and __${HOST_CPU_C_ABI}__ as C macros in
+dnl config.h.
+dnl
+dnl This canonical name can be used to select a particular assembly language
+dnl source file that will interoperate with C code on the given host.
+dnl
+dnl For example:
+dnl * 'i386' and 'sparc' are different canonical names, because code for i386
+dnl   will not run on SPARC CPUs and vice versa. They have different
+dnl   instruction sets.
+dnl * 'sparc' and 'sparc64' are different canonical names, because code for
+dnl   'sparc' and code for 'sparc64' cannot be linked together: 'sparc' code
+dnl   contains 32-bit instructions, whereas 'sparc64' code contains 64-bit
+dnl   instructions. A process on a SPARC CPU can be in 32-bit mode or in 64-bit
+dnl   mode, but not both.
+dnl * 'mips' and 'mipsn32' are different canonical names, because they use
+dnl   different argument passing and return conventions for C functions, and
+dnl   although the instruction set of 'mips' is a large subset of the
+dnl   instruction set of 'mipsn32'.
+dnl * 'mipsn32' and 'mips64' are different canonical names, because they use
+dnl   different sizes for the C types like 'int' and 'void *', and although
+dnl   the instruction sets of 'mipsn32' and 'mips64' are the same.
+dnl * The same canonical name is used for different endiannesses. You can
+dnl   determine the endianness through preprocessor symbols:
+dnl   - 'arm': test __ARMEL__.
+dnl   - 'mips', 'mipsn32', 'mips64': test _MIPSEB vs. _MIPSEL.
+dnl   - 'powerpc64': test _BIG_ENDIAN vs. _LITTLE_ENDIAN.
+dnl * The same name 'i386' is used for CPUs of type i386, i486, i586
+dnl   (Pentium), AMD K7, Pentium II, Pentium IV, etc., because
+dnl   - Instructions that do not exist on all of these CPUs (cmpxchg,
+dnl     MMX, SSE, SSE2, 3DNow! etc.) are not frequently used. If your
+dnl     assembly language source files use such instructions, you will
+dnl     need to make the distinction.
+dnl   - Speed of execution of the common instruction set is reasonable across
+dnl     the entire family of CPUs. If you have assembly language source files
+dnl     that are optimized for particular CPU types (like GNU gmp has), you
+dnl     will need to make the distinction.
+dnl   See <https://en.wikipedia.org/wiki/X86_instruction_listings>.
+AC_DEFUN([gl_HOST_CPU_C_ABI],
+[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_REQUIRE([gl_C_ASM])
+  AC_CACHE_CHECK([host CPU and C ABI], [gl_cv_host_cpu_c_abi],
+    [case "$host_cpu" in
+
+changequote(,)dnl
+       i[4567]86 )
+changequote([,])dnl
+         gl_cv_host_cpu_c_abi=i386
+         ;;
+
+       x86_64 )
+         # On x86_64 systems, the C compiler may be generating code in one of
+         # these ABIs:
+         # - 64-bit instruction set, 64-bit pointers, 64-bit 'long': x86_64.
+         # - 64-bit instruction set, 64-bit pointers, 32-bit 'long': x86_64
+         #   with native Windows (mingw, MSVC).
+         # - 64-bit instruction set, 32-bit pointers, 32-bit 'long': x86_64-x32.
+         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': i386.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if (defined __x86_64__ || defined __amd64__ \
+                     || defined _M_X64 || defined _M_AMD64)
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if defined __ILP32__ || defined _ILP32
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=x86_64-x32],
+              [gl_cv_host_cpu_c_abi=x86_64])],
+           [gl_cv_host_cpu_c_abi=i386])
+         ;;
+
+changequote(,)dnl
+       alphaev[4-8] | alphaev56 | alphapca5[67] | alphaev6[78] )
+changequote([,])dnl
+         gl_cv_host_cpu_c_abi=alpha
+         ;;
+
+       arm* | aarch64 )
+         # Assume arm with EABI.
+         # On arm64 systems, the C compiler may be generating code in one of
+         # these ABIs:
+         # - aarch64 instruction set, 64-bit pointers, 64-bit 'long': arm64.
+         # - aarch64 instruction set, 32-bit pointers, 32-bit 'long': arm64-ilp32.
+         # - 32-bit instruction set, 32-bit pointers, 32-bit 'long': arm or armhf.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef __aarch64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                [[#if defined __ILP32__ || defined _ILP32
+                   int ok;
+                  #else
+                   error fail
+                  #endif
+                ]])],
+              [gl_cv_host_cpu_c_abi=arm64-ilp32],
+              [gl_cv_host_cpu_c_abi=arm64])],
+           [# Don't distinguish little-endian and big-endian arm, since they
+            # don't require different machine code for simple operations and
+            # since the user can distinguish them through the preprocessor
+            # defines __ARMEL__ vs. __ARMEB__.
+            # But distinguish arm which passes floating-point arguments and
+            # return values in integer registers (r0, r1, ...) - this is
+            # gcc -mfloat-abi=soft or gcc -mfloat-abi=softfp - from arm which
+            # passes them in float registers (s0, s1, ...) and double registers
+            # (d0, d1, ...) - this is gcc -mfloat-abi=hard. GCC 4.6 or newer
+            # sets the preprocessor defines __ARM_PCS (for the first case) and
+            # __ARM_PCS_VFP (for the second case), but older GCC does not.
+            echo 'double ddd; void func (double dd) { ddd = dd; }' > conftest.c
+            # Look for a reference to the register d0 in the .s file.
+            AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $gl_c_asm_opt conftest.c) >/dev/null 2>&1
+            if LC_ALL=C grep -E 'd0,' conftest.$gl_asmext >/dev/null; then
+              gl_cv_host_cpu_c_abi=armhf
+            else
+              gl_cv_host_cpu_c_abi=arm
+            fi
+            rm -f conftest*
+           ])
+         ;;
+
+       hppa1.0 | hppa1.1 | hppa2.0* | hppa64 )
+         # On hppa, the C compiler may be generating 32-bit code or 64-bit
+         # code. In the latter case, it defines _LP64 and __LP64__.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef __LP64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=hppa64],
+           [gl_cv_host_cpu_c_abi=hppa])
+         ;;
+
+       ia64* )
+         # On ia64 on HP-UX, the C compiler may be generating 64-bit code or
+         # 32-bit code. In the latter case, it defines _ILP32.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#ifdef _ILP32
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=ia64-ilp32],
+           [gl_cv_host_cpu_c_abi=ia64])
+         ;;
+
+       mips* )
+         # We should also check for (_MIPS_SZPTR == 64), but gcc keeps this
+         # at 32.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined _MIPS_SZLONG && (_MIPS_SZLONG == 64)
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=mips64],
+           [# In the n32 ABI, _ABIN32 is defined, _ABIO32 is not defined (but
+            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIN32.
+            # In the 32 ABI, _ABIO32 is defined, _ABIN32 is not defined (but
+            # may later get defined by <sgidefs.h>), and _MIPS_SIM == _ABIO32.
+            AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if (_MIPS_SIM == _ABIN32)
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=mipsn32],
+              [gl_cv_host_cpu_c_abi=mips])])
+         ;;
+
+       powerpc* )
+         # Different ABIs are in use on AIX vs. Mac OS X vs. Linux,*BSD.
+         # No need to distinguish them here; the caller may distinguish
+         # them based on the OS.
+         # On powerpc64 systems, the C compiler may still be generating
+         # 32-bit code. And on powerpc-ibm-aix systems, the C compiler may
+         # be generating 64-bit code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __powerpc64__ || defined _ARCH_PPC64
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [# On powerpc64, there are two ABIs on Linux: The AIX compatible
+            # one and the ELFv2 one. The latter defines _CALL_ELF=2.
+            AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#if defined _CALL_ELF && _CALL_ELF == 2
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_host_cpu_c_abi=powerpc64-elfv2],
+              [gl_cv_host_cpu_c_abi=powerpc64])
+           ],
+           [gl_cv_host_cpu_c_abi=powerpc])
+         ;;
+
+       rs6000 )
+         gl_cv_host_cpu_c_abi=powerpc
+         ;;
+
+       s390* )
+         # On s390x, the C compiler may be generating 64-bit (= s390x) code
+         # or 31-bit (= s390) code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __LP64__ || defined __s390x__
+                  int ok;
+                #else
+                  error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=s390x],
+           [gl_cv_host_cpu_c_abi=s390])
+         ;;
+
+       sparc | sparc64 )
+         # UltraSPARCs running Linux have `uname -m` = "sparc64", but the
+         # C compiler still generates 32-bit code.
+         AC_COMPILE_IFELSE(
+           [AC_LANG_SOURCE(
+              [[#if defined __sparcv9 || defined __arch64__
+                 int ok;
+                #else
+                 error fail
+                #endif
+              ]])],
+           [gl_cv_host_cpu_c_abi=sparc64],
+           [gl_cv_host_cpu_c_abi=sparc])
+         ;;
+
+       *)
+         gl_cv_host_cpu_c_abi="$host_cpu"
+         ;;
+     esac
+    ])
+
+  dnl In most cases, $HOST_CPU and $HOST_CPU_C_ABI are the same.
+  HOST_CPU=`echo "$gl_cv_host_cpu_c_abi" | sed -e 's/-.*//'`
+  HOST_CPU_C_ABI="$gl_cv_host_cpu_c_abi"
+  AC_SUBST([HOST_CPU])
+  AC_SUBST([HOST_CPU_C_ABI])
+
+  # This was
+  #   AC_DEFINE_UNQUOTED([__${HOST_CPU}__])
+  #   AC_DEFINE_UNQUOTED([__${HOST_CPU_C_ABI}__])
+  # earlier, but KAI C++ 3.2d doesn't like this.
+  sed -e 's/-/_/g' >> confdefs.h <<EOF
+#ifndef __${HOST_CPU}__
+#define __${HOST_CPU}__ 1
+#endif
+#ifndef __${HOST_CPU_C_ABI}__
+#define __${HOST_CPU_C_ABI}__ 1
+#endif
+EOF
+  AH_TOP([/* CPU and C ABI indicator */
+#ifndef __i386__
+#undef __i386__
+#endif
+#ifndef __x86_64_x32__
+#undef __x86_64_x32__
+#endif
+#ifndef __x86_64__
+#undef __x86_64__
+#endif
+#ifndef __alpha__
+#undef __alpha__
+#endif
+#ifndef __arm__
+#undef __arm__
+#endif
+#ifndef __armhf__
+#undef __armhf__
+#endif
+#ifndef __arm64_ilp32__
+#undef __arm64_ilp32__
+#endif
+#ifndef __arm64__
+#undef __arm64__
+#endif
+#ifndef __hppa__
+#undef __hppa__
+#endif
+#ifndef __hppa64__
+#undef __hppa64__
+#endif
+#ifndef __ia64_ilp32__
+#undef __ia64_ilp32__
+#endif
+#ifndef __ia64__
+#undef __ia64__
+#endif
+#ifndef __m68k__
+#undef __m68k__
+#endif
+#ifndef __mips__
+#undef __mips__
+#endif
+#ifndef __mipsn32__
+#undef __mipsn32__
+#endif
+#ifndef __mips64__
+#undef __mips64__
+#endif
+#ifndef __powerpc__
+#undef __powerpc__
+#endif
+#ifndef __powerpc64__
+#undef __powerpc64__
+#endif
+#ifndef __powerpc64_elfv2__
+#undef __powerpc64_elfv2__
+#endif
+#ifndef __s390__
+#undef __s390__
+#endif
+#ifndef __s390x__
+#undef __s390x__
+#endif
+#ifndef __sh__
+#undef __sh__
+#endif
+#ifndef __sparc__
+#undef __sparc__
+#endif
+#ifndef __sparc64__
+#undef __sparc64__
+#endif
+])
+
+])
diff --git a/gnulib-m4/iconv.m4 b/gnulib-m4/iconv.m4
index bdafc54e..b33ecd04 100644
--- a/gnulib-m4/iconv.m4
+++ b/gnulib-m4/iconv.m4
@@ -1,5 +1,5 @@
-# iconv.m4 serial 20
-dnl Copyright (C) 2000-2002, 2007-2014, 2016 Free Software Foundation, Inc.
+# iconv.m4 serial 21
+dnl Copyright (C) 2000-2002, 2007-2014, 2016-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -167,15 +167,27 @@ AC_DEFUN([AM_ICONV_LINK],
 #endif
   /* Test against HP-UX 11.11 bug: No converter from EUC-JP to UTF-8 is
      provided.  */
-  if (/* Try standardized names.  */
-      iconv_open ("UTF-8", "EUC-JP") == (iconv_t)(-1)
-      /* Try IRIX, OSF/1 names.  */
-      && iconv_open ("UTF-8", "eucJP") == (iconv_t)(-1)
-      /* Try AIX names.  */
-      && iconv_open ("UTF-8", "IBM-eucJP") == (iconv_t)(-1)
-      /* Try HP-UX names.  */
-      && iconv_open ("utf8", "eucJP") == (iconv_t)(-1))
-    result |= 16;
+  {
+    /* Try standardized names.  */
+    iconv_t cd1 = iconv_open ("UTF-8", "EUC-JP");
+    /* Try IRIX, OSF/1 names.  */
+    iconv_t cd2 = iconv_open ("UTF-8", "eucJP");
+    /* Try AIX names.  */
+    iconv_t cd3 = iconv_open ("UTF-8", "IBM-eucJP");
+    /* Try HP-UX names.  */
+    iconv_t cd4 = iconv_open ("utf8", "eucJP");
+    if (cd1 == (iconv_t)(-1) && cd2 == (iconv_t)(-1)
+        && cd3 == (iconv_t)(-1) && cd4 == (iconv_t)(-1))
+      result |= 16;
+    if (cd1 != (iconv_t)(-1))
+      iconv_close (cd1);
+    if (cd2 != (iconv_t)(-1))
+      iconv_close (cd2);
+    if (cd3 != (iconv_t)(-1))
+      iconv_close (cd3);
+    if (cd4 != (iconv_t)(-1))
+      iconv_close (cd4);
+  }
   return result;
 ]])],
           [am_cv_func_iconv_works=yes], ,
diff --git a/gnulib-m4/iconv_h.m4 b/gnulib-m4/iconv_h.m4
index c95ecc29..d4ac2435 100644
--- a/gnulib-m4/iconv_h.m4
+++ b/gnulib-m4/iconv_h.m4
@@ -1,5 +1,5 @@
 # iconv_h.m4 serial 8
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/iconv_open.m4 b/gnulib-m4/iconv_open.m4
index 54e1dc8a..2517a5bb 100644
--- a/gnulib-m4/iconv_open.m4
+++ b/gnulib-m4/iconv_open.m4
@@ -1,5 +1,5 @@
 # iconv_open.m4 serial 14
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/include_next.m4 b/gnulib-m4/include_next.m4
index db0f2c07..068f6f60 100644
--- a/gnulib-m4/include_next.m4
+++ b/gnulib-m4/include_next.m4
@@ -1,12 +1,13 @@
-# include_next.m4 serial 23
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+# include_next.m4 serial 24
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Paul Eggert and Derek Price.
 
-dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER.
+dnl Sets INCLUDE_NEXT, INCLUDE_NEXT_AS_FIRST_DIRECTIVE, PRAGMA_SYSTEM_HEADER,
+dnl and PRAGMA_COLUMNS.
 dnl
 dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to
 dnl 'include' otherwise.
diff --git a/gnulib-m4/inline.m4 b/gnulib-m4/inline.m4
index 28fd2d09..f00572e0 100644
--- a/gnulib-m4/inline.m4
+++ b/gnulib-m4/inline.m4
@@ -1,5 +1,5 @@
 # inline.m4 serial 4
-dnl Copyright (C) 2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/intmax_t.m4 b/gnulib-m4/intmax_t.m4
index 9559acca..ff143e9d 100644
--- a/gnulib-m4/intmax_t.m4
+++ b/gnulib-m4/intmax_t.m4
@@ -1,5 +1,5 @@
 # intmax_t.m4 serial 8
-dnl Copyright (C) 1997-2004, 2006-2007, 2009-2016 Free Software Foundation,
+dnl Copyright (C) 1997-2004, 2006-2007, 2009-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gnulib-m4/inttypes-pri.m4 b/gnulib-m4/inttypes-pri.m4
index ae20183d..20557878 100644
--- a/gnulib-m4/inttypes-pri.m4
+++ b/gnulib-m4/inttypes-pri.m4
@@ -1,5 +1,5 @@
 # inttypes-pri.m4 serial 7 (gettext-0.18.2)
-dnl Copyright (C) 1997-2002, 2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 1997-2002, 2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/inttypes.m4 b/gnulib-m4/inttypes.m4
index 61cdb1a8..434a7ee2 100644
--- a/gnulib-m4/inttypes.m4
+++ b/gnulib-m4/inttypes.m4
@@ -1,5 +1,5 @@
 # inttypes.m4 serial 26
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/inttypes_h.m4 b/gnulib-m4/inttypes_h.m4
index 76571199..92403050 100644
--- a/gnulib-m4/inttypes_h.m4
+++ b/gnulib-m4/inttypes_h.m4
@@ -1,5 +1,5 @@
 # inttypes_h.m4 serial 10
-dnl Copyright (C) 1997-2004, 2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 1997-2004, 2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/isblank.m4 b/gnulib-m4/isblank.m4
new file mode 100644
index 00000000..abbc338b
--- /dev/null
+++ b/gnulib-m4/isblank.m4
@@ -0,0 +1,17 @@
+# isblank.m4 serial 3
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_ISBLANK],
+[
+  dnl Persuade glibc <ctype.h> to declare isblank().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_REQUIRE([gl_CTYPE_H_DEFAULTS])
+  AC_CHECK_FUNCS_ONCE([isblank])
+  if test $ac_cv_func_isblank = no; then
+    HAVE_ISBLANK=0
+  fi
+])
diff --git a/gnulib-m4/isnand.m4 b/gnulib-m4/isnand.m4
index bcf3840d..cbe6a38e 100644
--- a/gnulib-m4/isnand.m4
+++ b/gnulib-m4/isnand.m4
@@ -1,5 +1,5 @@
 # isnand.m4 serial 11
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/isnanf.m4 b/gnulib-m4/isnanf.m4
index f49d20c6..856234ab 100644
--- a/gnulib-m4/isnanf.m4
+++ b/gnulib-m4/isnanf.m4
@@ -1,5 +1,5 @@
-# isnanf.m4 serial 14
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# isnanf.m4 serial 15
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -180,8 +180,17 @@ int main()
         [gl_cv_func_isnanf_works=yes],
         [gl_cv_func_isnanf_works=no],
         [case "$host_os" in
-           irix* | solaris*) gl_cv_func_isnanf_works="guessing no";;
-           *)                gl_cv_func_isnanf_works="guessing yes";;
+           irix* | solaris*) gl_cv_func_isnanf_works="guessing no" ;;
+           mingw*) # Guess yes on mingw, no on MSVC.
+             AC_EGREP_CPP([Known], [
+#ifdef __MINGW32__
+ Known
+#endif
+               ],
+               [gl_cv_func_isnanf_works="guessing yes"],
+               [gl_cv_func_isnanf_works="guessing no"])
+             ;;
+           *) gl_cv_func_isnanf_works="guessing yes" ;;
          esac
         ])
     ])
diff --git a/gnulib-m4/isnanl.m4 b/gnulib-m4/isnanl.m4
index 9766e472..9578d2d2 100644
--- a/gnulib-m4/isnanl.m4
+++ b/gnulib-m4/isnanl.m4
@@ -1,5 +1,5 @@
-# isnanl.m4 serial 19
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# isnanl.m4 serial 20
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -231,6 +231,18 @@ int main ()
 }]])],
         [gl_cv_func_isnanl_works=yes],
         [gl_cv_func_isnanl_works=no],
-        [gl_cv_func_isnanl_works="guessing yes"])
+        [case "$host_os" in
+           mingw*) # Guess yes on mingw, no on MSVC.
+             AC_EGREP_CPP([Known], [
+#ifdef __MINGW32__
+ Known
+#endif
+               ],
+               [gl_cv_func_isnanl_works="guessing yes"],
+               [gl_cv_func_isnanl_works="guessing no"])
+             ;;
+           *) gl_cv_func_isnanl_works="guessing yes" ;;
+         esac
+        ])
     ])
 ])
diff --git a/gnulib-m4/iswblank.m4 b/gnulib-m4/iswblank.m4
index 06390738..e9d6975e 100644
--- a/gnulib-m4/iswblank.m4
+++ b/gnulib-m4/iswblank.m4
@@ -1,5 +1,5 @@
 # iswblank.m4 serial 4
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/langinfo_h.m4 b/gnulib-m4/langinfo_h.m4
index edbbe762..ea94b4ed 100644
--- a/gnulib-m4/langinfo_h.m4
+++ b/gnulib-m4/langinfo_h.m4
@@ -1,5 +1,5 @@
 # langinfo_h.m4 serial 7
-dnl Copyright (C) 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/ldexpl.m4 b/gnulib-m4/ldexpl.m4
index 8597c29f..5989b993 100644
--- a/gnulib-m4/ldexpl.m4
+++ b/gnulib-m4/ldexpl.m4
@@ -1,5 +1,5 @@
-# ldexpl.m4 serial 16
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# ldexpl.m4 serial 17
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -124,8 +124,10 @@ int main()
         [
 changequote(,)dnl
          case "$host_os" in
-           aix | aix[3-6]*) gl_cv_func_ldexpl_works="guessing no";;
-           *)               gl_cv_func_ldexpl_works="guessing yes";;
+           aix | aix[3-6]*) gl_cv_func_ldexpl_works="guessing no" ;;
+                            # Guess yes on native Windows.
+           mingw*)          gl_cv_func_ldexpl_works="guessing yes" ;;
+           *)               gl_cv_func_ldexpl_works="guessing yes" ;;
          esac
 changequote([,])dnl
         ])
diff --git a/gnulib-m4/lib-ld.m4 b/gnulib-m4/lib-ld.m4
index 6209de65..0f0c599f 100644
--- a/gnulib-m4/lib-ld.m4
+++ b/gnulib-m4/lib-ld.m4
@@ -1,5 +1,5 @@
-# lib-ld.m4 serial 6
-dnl Copyright (C) 1996-2003, 2009-2016 Free Software Foundation, Inc.
+# lib-ld.m4 serial 9
+dnl Copyright (C) 1996-2003, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -47,73 +47,122 @@ if test "${PATH_SEPARATOR+set}" != set; then
        }
 fi
 
-ac_prog=ld
-if test "$GCC" = yes; then
-  # Check if gcc -print-prog-name=ld gives a path.
+if test -n "$LD"; then
+  AC_MSG_CHECKING([for ld])
+elif test "$GCC" = yes; then
   AC_MSG_CHECKING([for ld used by $CC])
-  case $host in
-  *-*-mingw*)
-    # gcc leaves a trailing carriage return which upsets mingw
-    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
-  *)
-    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
-  esac
-  case $ac_prog in
-    # Accept absolute paths.
-    [[\\/]]* | ?:[[\\/]]*)
-      re_direlt='/[[^/]][[^/]]*/\.\./'
-      # Canonicalize the pathname of ld
-      ac_prog=`echo "$ac_prog"| sed 's%\\\\%/%g'`
-      while echo "$ac_prog" | grep "$re_direlt" > /dev/null 2>&1; do
-        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`
-      done
-      test -z "$LD" && LD="$ac_prog"
-      ;;
-  "")
-    # If it fails, then pretend we aren't using GCC.
-    ac_prog=ld
-    ;;
-  *)
-    # If it is relative, then search for the first ld in PATH.
-    with_gnu_ld=unknown
-    ;;
-  esac
 elif test "$with_gnu_ld" = yes; then
   AC_MSG_CHECKING([for GNU ld])
 else
   AC_MSG_CHECKING([for non-GNU ld])
 fi
-AC_CACHE_VAL([acl_cv_path_LD],
-[if test -z "$LD"; then
-  acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
-  for ac_dir in $PATH; do
-    IFS="$acl_save_ifs"
-    test -z "$ac_dir" && ac_dir=.
-    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
-      acl_cv_path_LD="$ac_dir/$ac_prog"
-      # Check to see if the program is GNU ld.  I'd rather use --version,
-      # but apparently some variants of GNU ld only accept -v.
-      # Break only if it was the GNU/non-GNU ld that we prefer.
-      case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
-      *GNU* | *'with BFD'*)
-        test "$with_gnu_ld" != no && break
-        ;;
-      *)
-        test "$with_gnu_ld" != yes && break
-        ;;
+if test -n "$LD"; then
+  # Let the user override the test with a path.
+  :
+else
+  AC_CACHE_VAL([acl_cv_path_LD],
+  [
+    acl_cv_path_LD= # Final result of this test
+    ac_prog=ld # Program to search in $PATH
+    if test "$GCC" = yes; then
+      # Check if gcc -print-prog-name=ld gives a path.
+      case $host in
+        *-*-mingw*)
+          # gcc leaves a trailing carriage return which upsets mingw
+          acl_output=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+        *)
+          acl_output=`($CC -print-prog-name=ld) 2>&5` ;;
+      esac
+      case $acl_output in
+        # Accept absolute paths.
+        [[\\/]]* | ?:[[\\/]]*)
+          re_direlt='/[[^/]][[^/]]*/\.\./'
+          # Canonicalize the pathname of ld
+          acl_output=`echo "$acl_output" | sed 's%\\\\%/%g'`
+          while echo "$acl_output" | grep "$re_direlt" > /dev/null 2>&1; do
+            acl_output=`echo $acl_output | sed "s%$re_direlt%/%"`
+          done
+          # Got the pathname. No search in PATH is needed.
+          acl_cv_path_LD="$acl_output"
+          ac_prog=
+          ;;
+        "")
+          # If it fails, then pretend we aren't using GCC.
+          ;;
+        *)
+          # If it is relative, then search for the first ld in PATH.
+          with_gnu_ld=unknown
+          ;;
       esac
     fi
-  done
-  IFS="$acl_save_ifs"
-else
-  acl_cv_path_LD="$LD" # Let the user override the test with a path.
-fi])
-LD="$acl_cv_path_LD"
+    if test -n "$ac_prog"; then
+      # Search for $ac_prog in $PATH.
+      acl_save_ifs="$IFS"; IFS=$PATH_SEPARATOR
+      for ac_dir in $PATH; do
+        IFS="$acl_save_ifs"
+        test -z "$ac_dir" && ac_dir=.
+        if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+          acl_cv_path_LD="$ac_dir/$ac_prog"
+          # Check to see if the program is GNU ld.  I'd rather use --version,
+          # but apparently some variants of GNU ld only accept -v.
+          # Break only if it was the GNU/non-GNU ld that we prefer.
+          case `"$acl_cv_path_LD" -v 2>&1 </dev/null` in
+            *GNU* | *'with BFD'*)
+              test "$with_gnu_ld" != no && break
+              ;;
+            *)
+              test "$with_gnu_ld" != yes && break
+              ;;
+          esac
+        fi
+      done
+      IFS="$acl_save_ifs"
+    fi
+    case $host in
+      *-*-aix*)
+        AC_COMPILE_IFELSE(
+          [AC_LANG_SOURCE(
+             [[#if defined __powerpc64__ || defined _ARCH_PPC64
+                int ok;
+               #else
+                error fail
+               #endif
+             ]])],
+          [# The compiler produces 64-bit code. Add option '-b64' so that the
+           # linker groks 64-bit object files.
+           case "$acl_cv_path_LD " in
+             *" -b64 "*) ;;
+             *) acl_cv_path_LD="$acl_cv_path_LD -b64" ;;
+           esac
+          ], [])
+        ;;
+      sparc64-*-netbsd*)
+        AC_COMPILE_IFELSE(
+          [AC_LANG_SOURCE(
+             [[#if defined __sparcv9 || defined __arch64__
+                int ok;
+               #else
+                error fail
+               #endif
+             ]])],
+          [],
+          [# The compiler produces 32-bit code. Add option '-m elf32_sparc'
+           # so that the linker groks 32-bit object files.
+           case "$acl_cv_path_LD " in
+             *" -m elf32_sparc "*) ;;
+             *) acl_cv_path_LD="$acl_cv_path_LD -m elf32_sparc" ;;
+           esac
+          ])
+        ;;
+    esac
+  ])
+  LD="$acl_cv_path_LD"
+fi
 if test -n "$LD"; then
   AC_MSG_RESULT([$LD])
 else
   AC_MSG_RESULT([no])
+  AC_MSG_ERROR([no acceptable ld found in \$PATH])
 fi
-test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 AC_LIB_PROG_LD_GNU
 ])
diff --git a/gnulib-m4/lib-link.m4 b/gnulib-m4/lib-link.m4
index 2f518553..1ce9a5ab 100644
--- a/gnulib-m4/lib-link.m4
+++ b/gnulib-m4/lib-link.m4
@@ -1,5 +1,5 @@
 # lib-link.m4 serial 26 (gettext-0.18.2)
-dnl Copyright (C) 2001-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2001-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/lib-prefix.m4 b/gnulib-m4/lib-prefix.m4
index 6851031d..9fc47a16 100644
--- a/gnulib-m4/lib-prefix.m4
+++ b/gnulib-m4/lib-prefix.m4
@@ -1,5 +1,5 @@
-# lib-prefix.m4 serial 7 (gettext-0.18)
-dnl Copyright (C) 2001-2005, 2008-2016 Free Software Foundation, Inc.
+# lib-prefix.m4 serial 11
+dnl Copyright (C) 2001-2005, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -174,51 +174,82 @@ AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
   dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or
   dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib.
   AC_REQUIRE([AC_CANONICAL_HOST])
-  acl_libdirstem=lib
-  acl_libdirstem2=
-  case "$host_os" in
-    solaris*)
-      dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment
-      dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>.
-      dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link."
-      dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the
-      dnl symlink is missing, so we set acl_libdirstem2 too.
-      AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit],
-        [AC_EGREP_CPP([sixtyfour bits], [
-#ifdef _LP64
-sixtyfour bits
-#endif
-           ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no])
-        ])
-      if test $gl_cv_solaris_64bit = yes; then
-        acl_libdirstem=lib/64
-        case "$host_cpu" in
-          sparc*)        acl_libdirstem2=lib/sparcv9 ;;
-          i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
-        esac
-      fi
-      ;;
-    *)
-      searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
-      if test -n "$searchpath"; then
-        acl_save_IFS="${IFS= 	}"; IFS=":"
-        for searchdir in $searchpath; do
-          if test -d "$searchdir"; then
-            case "$searchdir" in
-              */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
-              */../ | */.. )
-                # Better ignore directories of this form. They are misleading.
-                ;;
-              *) searchdir=`cd "$searchdir" && pwd`
-                 case "$searchdir" in
-                   */lib64 ) acl_libdirstem=lib64 ;;
-                 esac ;;
-            esac
-          fi
-        done
-        IFS="$acl_save_IFS"
-      fi
-      ;;
-  esac
-  test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+  AC_REQUIRE([gl_HOST_CPU_C_ABI])
+  dnl Allow the user to override the result by setting acl_cv_libdirstems.
+  AC_CACHE_CHECK([for the common suffixes of directories in the library search path],
+    [acl_cv_libdirstems],
+    [acl_libdirstem=lib
+     acl_libdirstem2=
+     case "$host_os" in
+       solaris*)
+         dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment
+         dnl <https://docs.oracle.com/cd/E19253-01/816-5138/dev-env/index.html>.
+         dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link."
+         dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the
+         dnl symlink is missing, so we set acl_libdirstem2 too.
+         AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit],
+           [AC_COMPILE_IFELSE(
+              [AC_LANG_SOURCE(
+                 [[#ifdef _LP64
+                    int ok;
+                   #else
+                    error fail
+                   #endif
+                 ]])],
+              [gl_cv_solaris_64bit=yes],
+              [gl_cv_solaris_64bit=no])
+           ])
+         if test $gl_cv_solaris_64bit = yes; then
+           acl_libdirstem=lib/64
+           case "$host_cpu" in
+             sparc*)        acl_libdirstem2=lib/sparcv9 ;;
+             i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
+           esac
+         fi
+         ;;
+       *)
+         dnl If $CC generates code for a 32-bit ABI, the libraries are
+         dnl surely under $prefix/lib, not $prefix/lib64.
+         case "$gl_cv_host_cpu_c_abi" in
+           i386 | arm | armhf | arm64-ilp32 | hppa | ia64-ilp32 | mips | mipsn32 | powerpc | s390 | sparc)
+             ;;
+           *) # x86_64 | arm64 | hppa64 | ia64 | mips64 | powerpc64* | s390x | sparc64 | ...
+             dnl The result is a property of the system. However, non-system
+             dnl compilers sometimes have odd library search paths. Therefore
+             dnl prefer asking /usr/bin/gcc, if available, rather than $CC.
+             searchpath=`(if test -f /usr/bin/gcc \
+                             && LC_ALL=C /usr/bin/gcc -print-search-dirs >/dev/null 2>/dev/null; then \
+                            LC_ALL=C /usr/bin/gcc -print-search-dirs; \
+                          else \
+                            LC_ALL=C $CC -print-search-dirs; \
+                          fi) 2>/dev/null \
+                         | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
+             if test -n "$searchpath"; then
+               acl_save_IFS="${IFS= 	}"; IFS=":"
+               for searchdir in $searchpath; do
+                 if test -d "$searchdir"; then
+                   case "$searchdir" in
+                     */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
+                     */../ | */.. )
+                       # Better ignore directories of this form. They are misleading.
+                       ;;
+                     *) searchdir=`cd "$searchdir" && pwd`
+                        case "$searchdir" in
+                          */lib64 ) acl_libdirstem=lib64 ;;
+                        esac ;;
+                   esac
+                 fi
+               done
+               IFS="$acl_save_IFS"
+             fi
+             ;;
+         esac
+         ;;
+     esac
+     test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
+     acl_cv_libdirstems="$acl_libdirstem,$acl_libdirstem2"
+    ])
+  # Decompose acl_cv_libdirstems into acl_libdirstem and acl_libdirstem2.
+  acl_libdirstem=`echo "$acl_cv_libdirstems" | sed -e 's/,.*//'`
+  acl_libdirstem2=`echo "$acl_cv_libdirstems" | sed -e '/,/s/.*,//'`
 ])
diff --git a/gnulib-m4/libunistring-base.m4 b/gnulib-m4/libunistring-base.m4
index f911216b..ee648f27 100644
--- a/gnulib-m4/libunistring-base.m4
+++ b/gnulib-m4/libunistring-base.m4
@@ -1,5 +1,5 @@
 # libunistring-base.m4 serial 5
-dnl Copyright (C) 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/limits-h.m4 b/gnulib-m4/limits-h.m4
index 31fdf0a7..443f91b4 100644
--- a/gnulib-m4/limits-h.m4
+++ b/gnulib-m4/limits-h.m4
@@ -1,6 +1,6 @@
 dnl Check whether limits.h has needed features.
 
-dnl Copyright 2016 Free Software Foundation, Inc.
+dnl Copyright 2016-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/localcharset.m4 b/gnulib-m4/localcharset.m4
index 22c311b9..0c1ff386 100644
--- a/gnulib-m4/localcharset.m4
+++ b/gnulib-m4/localcharset.m4
@@ -1,5 +1,5 @@
 # localcharset.m4 serial 7
-dnl Copyright (C) 2002, 2004, 2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002, 2004, 2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/locale-ar.m4 b/gnulib-m4/locale-ar.m4
index 200fb33d..0cf83973 100644
--- a/gnulib-m4/locale-ar.m4
+++ b/gnulib-m4/locale-ar.m4
@@ -1,5 +1,5 @@
-# locale-ar.m4 serial 6
-dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc.
+# locale-ar.m4 serial 7
+dnl Copyright (C) 2003, 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -24,8 +24,14 @@ changequote(,)dnl
 struct tm t;
 char buf[16];
 int main () {
+  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
+     imitates locale dependent behaviour by looking at the environment
+     variables, and all locales use the UTF-8 encoding.  */
+#if defined __BEOS__ || defined __HAIKU__
+  return 1;
+#else
   /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
   /* On native Windows, setlocale(category, "") looks at the system settings,
      not at the environment variables.  Also, when an encoding suffix such
      as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
@@ -33,26 +39,27 @@ int main () {
   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
     return 1;
-#else
+# else
   if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
+# endif
   /* Check that nl_langinfo(CODESET) is nonempty and not "ASCII" or "646"
      and ends in "6". */
-#if HAVE_LANGINFO_CODESET
+# if HAVE_LANGINFO_CODESET
   {
     const char *cs = nl_langinfo (CODESET);
     if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
         || cs[strlen (cs) - 1] != '6')
       return 1;
   }
-#endif
-#ifdef __CYGWIN__
+# endif
+# ifdef __CYGWIN__
   /* On Cygwin, avoid locale names without encoding suffix, because the
      locale_charset() function relies on the encoding suffix.  Note that
      LC_ALL is set on the command line.  */
   if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
+# endif
   return 0;
+#endif
 }
 changequote([,])dnl
       ])])
diff --git a/gnulib-m4/locale-fr.m4 b/gnulib-m4/locale-fr.m4
index 92896a03..d974b035 100644
--- a/gnulib-m4/locale-fr.m4
+++ b/gnulib-m4/locale-fr.m4
@@ -1,5 +1,5 @@
-# locale-fr.m4 serial 17
-dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc.
+# locale-fr.m4 serial 18
+dnl Copyright (C) 2003, 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -24,8 +24,14 @@ changequote(,)dnl
 struct tm t;
 char buf[16];
 int main () {
+  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
+     imitates locale dependent behaviour by looking at the environment
+     variables, and all locales use the UTF-8 encoding.  */
+#if defined __BEOS__ || defined __HAIKU__
+  return 1;
+#else
   /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
   /* On native Windows, setlocale(category, "") looks at the system settings,
      not at the environment variables.  Also, when an encoding suffix such
      as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
@@ -33,9 +39,9 @@ int main () {
   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
     return 1;
-#else
+# else
   if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
+# endif
   /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
      On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
@@ -44,32 +50,33 @@ int main () {
      some unit tests fail.
      On MirBSD 10, when an unsupported locale is specified, setlocale()
      succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
-#if HAVE_LANGINFO_CODESET
+# if HAVE_LANGINFO_CODESET
   {
     const char *cs = nl_langinfo (CODESET);
     if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
         || strcmp (cs, "UTF-8") == 0)
       return 1;
   }
-#endif
-#ifdef __CYGWIN__
+# endif
+# ifdef __CYGWIN__
   /* On Cygwin, avoid locale names without encoding suffix, because the
      locale_charset() function relies on the encoding suffix.  Note that
      LC_ALL is set on the command line.  */
   if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
+# endif
   /* Check whether in the abbreviation of the second month, the second
      character (should be U+00E9: LATIN SMALL LETTER E WITH ACUTE) is only
      one byte long. This excludes the UTF-8 encoding.  */
   t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
   if (strftime (buf, sizeof (buf), "%b", &t) < 3 || buf[2] != 'v') return 1;
-#if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy.  */
+# if !defined __BIONIC__ /* Bionic libc's 'struct lconv' is just a dummy.  */
   /* Check whether the decimal separator is a comma.
      On NetBSD 3.0 in the fr_FR.ISO8859-1 locale, localeconv()->decimal_point
      are nl_langinfo(RADIXCHAR) are both ".".  */
   if (localeconv () ->decimal_point[0] != ',') return 1;
-#endif
+# endif
   return 0;
+#endif
 }
 changequote([,])dnl
       ])])
diff --git a/gnulib-m4/locale-ja.m4 b/gnulib-m4/locale-ja.m4
index f222a086..48d18d61 100644
--- a/gnulib-m4/locale-ja.m4
+++ b/gnulib-m4/locale-ja.m4
@@ -1,5 +1,5 @@
-# locale-ja.m4 serial 12
-dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc.
+# locale-ja.m4 serial 13
+dnl Copyright (C) 2003, 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -25,9 +25,14 @@ struct tm t;
 char buf[16];
 int main ()
 {
-  const char *p;
+  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
+     imitates locale dependent behaviour by looking at the environment
+     variables, and all locales use the UTF-8 encoding.  */
+#if defined __BEOS__ || defined __HAIKU__
+  return 1;
+#else
   /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
   /* On native Windows, setlocale(category, "") looks at the system settings,
      not at the environment variables.  Also, when an encoding suffix such
      as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
@@ -35,9 +40,9 @@ int main ()
   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
     return 1;
-#else
+# else
   if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
+# endif
   /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
      On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
@@ -46,32 +51,36 @@ int main ()
      some unit tests fail.
      On MirBSD 10, when an unsupported locale is specified, setlocale()
      succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
-#if HAVE_LANGINFO_CODESET
+# if HAVE_LANGINFO_CODESET
   {
     const char *cs = nl_langinfo (CODESET);
     if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
         || strcmp (cs, "UTF-8") == 0)
       return 1;
   }
-#endif
-#ifdef __CYGWIN__
+# endif
+# ifdef __CYGWIN__
   /* On Cygwin, avoid locale names without encoding suffix, because the
      locale_charset() function relies on the encoding suffix.  Note that
      LC_ALL is set on the command line.  */
   if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
+# endif
   /* Check whether MB_CUR_MAX is > 1.  This excludes the dysfunctional locales
      on Cygwin 1.5.x.  */
   if (MB_CUR_MAX == 1)
     return 1;
   /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
      This excludes the UTF-8 encoding (except on MirBSD).  */
-  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
-  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
-  for (p = buf; *p != '\0'; p++)
-    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
-      return 1;
+  {
+    const char *p;
+    t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+    if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
+    for (p = buf; *p != '\0'; p++)
+      if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
+        return 1;
+  }
   return 0;
+#endif
 }
 changequote([,])dnl
       ])])
diff --git a/gnulib-m4/locale-tr.m4 b/gnulib-m4/locale-tr.m4
index 75aa2956..06e2f6ec 100644
--- a/gnulib-m4/locale-tr.m4
+++ b/gnulib-m4/locale-tr.m4
@@ -1,5 +1,5 @@
 # locale-tr.m4 serial 10
-dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/locale-zh.m4 b/gnulib-m4/locale-zh.m4
index 2271f778..5fb7f538 100644
--- a/gnulib-m4/locale-zh.m4
+++ b/gnulib-m4/locale-zh.m4
@@ -1,5 +1,5 @@
-# locale-zh.m4 serial 12
-dnl Copyright (C) 2003, 2005-2016 Free Software Foundation, Inc.
+# locale-zh.m4 serial 13
+dnl Copyright (C) 2003, 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -26,9 +26,14 @@ struct tm t;
 char buf[16];
 int main ()
 {
-  const char *p;
+  /* On BeOS and Haiku, locales are not implemented in libc.  Rather, libintl
+     imitates locale dependent behaviour by looking at the environment
+     variables, and all locales use the UTF-8 encoding.  */
+#if defined __BEOS__ || defined __HAIKU__
+  return 1;
+#else
   /* Check whether the given locale name is recognized by the system.  */
-#if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
+# if (defined _WIN32 || defined __WIN32__) && !defined __CYGWIN__
   /* On native Windows, setlocale(category, "") looks at the system settings,
      not at the environment variables.  Also, when an encoding suffix such
      as ".65001" or ".54936" is specified, it succeeds but sets the LC_CTYPE
@@ -36,9 +41,9 @@ int main ()
   if (setlocale (LC_ALL, getenv ("LC_ALL")) == NULL
       || strcmp (setlocale (LC_CTYPE, NULL), "C") == 0)
     return 1;
-#else
+# else
   if (setlocale (LC_ALL, "") == NULL) return 1;
-#endif
+# endif
   /* Check whether nl_langinfo(CODESET) is nonempty and not "ASCII" or "646".
      On Mac OS X 10.3.5 (Darwin 7.5) in the fr_FR locale, nl_langinfo(CODESET)
      is empty, and the behaviour of Tcl 8.4 in this locale is not useful.
@@ -47,32 +52,36 @@ int main ()
      some unit tests fail.
      On MirBSD 10, when an unsupported locale is specified, setlocale()
      succeeds but then nl_langinfo(CODESET) is "UTF-8".  */
-#if HAVE_LANGINFO_CODESET
+# if HAVE_LANGINFO_CODESET
   {
     const char *cs = nl_langinfo (CODESET);
     if (cs[0] == '\0' || strcmp (cs, "ASCII") == 0 || strcmp (cs, "646") == 0
         || strcmp (cs, "UTF-8") == 0)
       return 1;
   }
-#endif
-#ifdef __CYGWIN__
+# endif
+# ifdef __CYGWIN__
   /* On Cygwin, avoid locale names without encoding suffix, because the
      locale_charset() function relies on the encoding suffix.  Note that
      LC_ALL is set on the command line.  */
   if (strchr (getenv ("LC_ALL"), '.') == NULL) return 1;
-#endif
+# endif
   /* Check whether in a month name, no byte in the range 0x80..0x9F occurs.
      This excludes the UTF-8 encoding (except on MirBSD).  */
-  t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
-  if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
-  for (p = buf; *p != '\0'; p++)
-    if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
-      return 1;
+  {
+    const char *p;
+    t.tm_year = 1975 - 1900; t.tm_mon = 2 - 1; t.tm_mday = 4;
+    if (strftime (buf, sizeof (buf), "%B", &t) < 2) return 1;
+    for (p = buf; *p != '\0'; p++)
+      if ((unsigned char) *p >= 0x80 && (unsigned char) *p < 0xa0)
+        return 1;
+  }
   /* Check whether a typical GB18030 multibyte sequence is recognized as a
      single wide character.  This excludes the GB2312 and GBK encodings.  */
   if (mblen ("\203\062\332\066", 5) != 4)
     return 1;
   return 0;
+#endif
 }
 changequote([,])dnl
       ])])
diff --git a/gnulib-m4/locale_h.m4 b/gnulib-m4/locale_h.m4
index 563f8f81..db005a5b 100644
--- a/gnulib-m4/locale_h.m4
+++ b/gnulib-m4/locale_h.m4
@@ -1,5 +1,5 @@
-# locale_h.m4 serial 19
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+# locale_h.m4 serial 20
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -17,7 +17,7 @@ AC_DEFUN([gl_LOCALE_H],
   dnl If <stddef.h> is replaced, then <locale.h> must also be replaced.
   AC_REQUIRE([gl_STDDEF_H])
 
-  dnl Solaris 11 2011-11 defines the int_p_*, int_n_* members of 'struct lconv'
+  dnl Solaris 11.0 defines the int_p_*, int_n_* members of 'struct lconv'
   dnl only if _LCONV_C99 is defined.
   AC_REQUIRE([AC_CANONICAL_HOST])
   case "$host_os" in
diff --git a/gnulib-m4/localename.m4 b/gnulib-m4/localename.m4
index fc1d3ea4..bb425167 100644
--- a/gnulib-m4/localename.m4
+++ b/gnulib-m4/localename.m4
@@ -1,5 +1,5 @@
 # localename.m4 serial 2
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/lock.m4 b/gnulib-m4/lock.m4
index 1e83e236..cb04a67d 100644
--- a/gnulib-m4/lock.m4
+++ b/gnulib-m4/lock.m4
@@ -1,5 +1,5 @@
-# lock.m4 serial 13 (gettext-0.18.2)
-dnl Copyright (C) 2005-2016 Free Software Foundation, Inc.
+# lock.m4 serial 14
+dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -12,11 +12,16 @@ AC_DEFUN([gl_LOCK],
   if test "$gl_threads_api" = posix; then
     # OSF/1 4.0 and Mac OS X 10.1 lack the pthread_rwlock_t type and the
     # pthread_rwlock_* functions.
+    has_rwlock=false
     AC_CHECK_TYPE([pthread_rwlock_t],
-      [AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1],
+      [has_rwlock=true
+       AC_DEFINE([HAVE_PTHREAD_RWLOCK], [1],
          [Define if the POSIX multithreading library has read/write locks.])],
       [],
       [#include <pthread.h>])
+    if $has_rwlock; then
+      gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER
+    fi
     # glibc defines PTHREAD_MUTEX_RECURSIVE as enum, not as a macro.
     AC_COMPILE_IFELSE([
       AC_LANG_PROGRAM(
diff --git a/gnulib-m4/longlong.m4 b/gnulib-m4/longlong.m4
index 36d8b124..9a3294bc 100644
--- a/gnulib-m4/longlong.m4
+++ b/gnulib-m4/longlong.m4
@@ -1,5 +1,5 @@
 # longlong.m4 serial 17
-dnl Copyright (C) 1999-2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 1999-2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/malloc.m4 b/gnulib-m4/malloc.m4
index c393690e..5e6a83a6 100644
--- a/gnulib-m4/malloc.m4
+++ b/gnulib-m4/malloc.m4
@@ -1,5 +1,5 @@
 # malloc.m4 serial 15
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -7,7 +7,7 @@ dnl with or without modifications, as long as this notice is preserved.
 m4_version_prereq([2.70], [] ,[
 
 # This is adapted with modifications from upstream Autoconf here:
-# http://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c
+# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c
 AC_DEFUN([_AC_FUNC_MALLOC_IF],
 [
   AC_REQUIRE([AC_HEADER_STDC])dnl
diff --git a/gnulib-m4/malloca.m4 b/gnulib-m4/malloca.m4
index b368b20e..6956baf2 100644
--- a/gnulib-m4/malloca.m4
+++ b/gnulib-m4/malloca.m4
@@ -1,5 +1,5 @@
 # malloca.m4 serial 1
-dnl Copyright (C) 2003-2004, 2006-2007, 2009-2016 Free Software Foundation,
+dnl Copyright (C) 2003-2004, 2006-2007, 2009-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
diff --git a/gnulib-m4/math_h.m4 b/gnulib-m4/math_h.m4
index 35d07ee5..b9a432ee 100644
--- a/gnulib-m4/math_h.m4
+++ b/gnulib-m4/math_h.m4
@@ -1,5 +1,5 @@
-# math_h.m4 serial 114
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# math_h.m4 serial 116
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -256,11 +256,18 @@ AC_DEFUN([gl_MATH_H_DEFAULTS],
   HAVE_DECL_TRUNC=1;           AC_SUBST([HAVE_DECL_TRUNC])
   HAVE_DECL_TRUNCF=1;          AC_SUBST([HAVE_DECL_TRUNCF])
   HAVE_DECL_TRUNCL=1;          AC_SUBST([HAVE_DECL_TRUNCL])
+  REPLACE_ACOSF=0;             AC_SUBST([REPLACE_ACOSF])
+  REPLACE_ASINF=0;             AC_SUBST([REPLACE_ASINF])
+  REPLACE_ATANF=0;             AC_SUBST([REPLACE_ATANF])
+  REPLACE_ATAN2F=0;            AC_SUBST([REPLACE_ATAN2F])
   REPLACE_CBRTF=0;             AC_SUBST([REPLACE_CBRTF])
   REPLACE_CBRTL=0;             AC_SUBST([REPLACE_CBRTL])
   REPLACE_CEIL=0;              AC_SUBST([REPLACE_CEIL])
   REPLACE_CEILF=0;             AC_SUBST([REPLACE_CEILF])
   REPLACE_CEILL=0;             AC_SUBST([REPLACE_CEILL])
+  REPLACE_COSF=0;              AC_SUBST([REPLACE_COSF])
+  REPLACE_COSHF=0;             AC_SUBST([REPLACE_COSHF])
+  REPLACE_EXPF=0;              AC_SUBST([REPLACE_EXPF])
   REPLACE_EXPM1=0;             AC_SUBST([REPLACE_EXPM1])
   REPLACE_EXPM1F=0;            AC_SUBST([REPLACE_EXPM1F])
   REPLACE_EXP2=0;              AC_SUBST([REPLACE_EXP2])
@@ -284,6 +291,7 @@ AC_DEFUN([gl_MATH_H_DEFAULTS],
   REPLACE_HYPOTL=0;            AC_SUBST([REPLACE_HYPOTL])
   REPLACE_ILOGB=0;             AC_SUBST([REPLACE_ILOGB])
   REPLACE_ILOGBF=0;            AC_SUBST([REPLACE_ILOGBF])
+  REPLACE_ILOGBL=0;            AC_SUBST([REPLACE_ILOGBL])
   REPLACE_ISFINITE=0;          AC_SUBST([REPLACE_ISFINITE])
   REPLACE_ISINF=0;             AC_SUBST([REPLACE_ISINF])
   REPLACE_ISNAN=0;             AC_SUBST([REPLACE_ISNAN])
@@ -315,7 +323,12 @@ AC_DEFUN([gl_MATH_H_DEFAULTS],
   REPLACE_ROUNDL=0;            AC_SUBST([REPLACE_ROUNDL])
   REPLACE_SIGNBIT=0;           AC_SUBST([REPLACE_SIGNBIT])
   REPLACE_SIGNBIT_USING_GCC=0; AC_SUBST([REPLACE_SIGNBIT_USING_GCC])
+  REPLACE_SINF=0;              AC_SUBST([REPLACE_SINF])
+  REPLACE_SINHF=0;             AC_SUBST([REPLACE_SINHF])
+  REPLACE_SQRTF=0;             AC_SUBST([REPLACE_SQRTF])
   REPLACE_SQRTL=0;             AC_SUBST([REPLACE_SQRTL])
+  REPLACE_TANF=0;              AC_SUBST([REPLACE_TANF])
+  REPLACE_TANHF=0;             AC_SUBST([REPLACE_TANHF])
   REPLACE_TRUNC=0;             AC_SUBST([REPLACE_TRUNC])
   REPLACE_TRUNCF=0;            AC_SUBST([REPLACE_TRUNCF])
   REPLACE_TRUNCL=0;            AC_SUBST([REPLACE_TRUNCL])
diff --git a/gnulib-m4/mbchar.m4 b/gnulib-m4/mbchar.m4
index 26484fae..60ea1244 100644
--- a/gnulib-m4/mbchar.m4
+++ b/gnulib-m4/mbchar.m4
@@ -1,5 +1,5 @@
 # mbchar.m4 serial 9
-dnl Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005-2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/mbiter.m4 b/gnulib-m4/mbiter.m4
index 3383ee4e..add40344 100644
--- a/gnulib-m4/mbiter.m4
+++ b/gnulib-m4/mbiter.m4
@@ -1,5 +1,5 @@
 # mbiter.m4 serial 7
-dnl Copyright (C) 2005, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/mbrtowc.m4 b/gnulib-m4/mbrtowc.m4
index 5edf08be..216594eb 100644
--- a/gnulib-m4/mbrtowc.m4
+++ b/gnulib-m4/mbrtowc.m4
@@ -1,5 +1,5 @@
-# mbrtowc.m4 serial 27  -*- coding: utf-8 -*-
-dnl Copyright (C) 2001-2002, 2004-2005, 2008-2016 Free Software Foundation,
+# mbrtowc.m4 serial 29  -*- coding: utf-8 -*-
+dnl Copyright (C) 2001-2002, 2004-2005, 2008-2017 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
@@ -563,9 +563,11 @@ AC_DEFUN([gl_MBRTOWC_EMPTY_INPUT],
       dnl is present.
 changequote(,)dnl
       case "$host_os" in
-                     # Guess no on AIX and glibc systems.
+                    # Guess no on AIX and glibc systems.
         aix* | *-gnu*)
                     gl_cv_func_mbrtowc_empty_input="guessing no" ;;
+                    # Guess yes on native Windows.
+        mingw*)     gl_cv_func_mbrtowc_empty_input="guessing yes" ;;
         *)          gl_cv_func_mbrtowc_empty_input="guessing yes" ;;
       esac
 changequote([,])dnl
@@ -592,6 +594,7 @@ dnl https://sourceware.org/bugzilla/show_bug.cgi?id=19932
 
 AC_DEFUN([gl_MBRTOWC_C_LOCALE],
 [
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_CACHE_CHECK([whether the C locale is free of encoding errors],
     [gl_cv_C_locale_sans_EILSEQ],
     [
@@ -622,7 +625,12 @@ AC_DEFUN([gl_MBRTOWC_C_LOCALE],
           ]])],
       [gl_cv_C_locale_sans_EILSEQ=yes],
       [gl_cv_C_locale_sans_EILSEQ=no],
-      [:])])
+      [case "$host_os" in
+                 # Guess yes on native Windows.
+         mingw*) gl_cv_C_locale_sans_EILSEQ="guessing yes" ;;
+       esac
+      ])
+    ])
 ])
 
 # Prerequisites of lib/mbrtowc.c.
@@ -639,7 +647,7 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
 [
   dnl Same as AC_FUNC_MBRTOWC in autoconf-2.60.
   AC_CACHE_CHECK([whether mbrtowc and mbstate_t are properly declared],
-    gl_cv_func_mbrtowc,
+    [gl_cv_func_mbrtowc],
     [AC_LINK_IFELSE(
        [AC_LANG_PROGRAM(
             [[/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be
@@ -655,8 +663,8 @@ AC_DEFUN([AC_FUNC_MBRTOWC],
               size_t n = 1;
               mbstate_t state;
               return ! (sizeof state && (mbrtowc) (&wc, s, n, &state));]])],
-       gl_cv_func_mbrtowc=yes,
-       gl_cv_func_mbrtowc=no)])
+       [gl_cv_func_mbrtowc=yes],
+       [gl_cv_func_mbrtowc=no])])
   if test $gl_cv_func_mbrtowc = yes; then
     AC_DEFINE([HAVE_MBRTOWC], [1],
       [Define to 1 if mbrtowc and mbstate_t are properly declared.])
diff --git a/gnulib-m4/mbsinit.m4 b/gnulib-m4/mbsinit.m4
index 88f08367..5904a510 100644
--- a/gnulib-m4/mbsinit.m4
+++ b/gnulib-m4/mbsinit.m4
@@ -1,5 +1,5 @@
 # mbsinit.m4 serial 8
-dnl Copyright (C) 2008, 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2008, 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/mbstate_t.m4 b/gnulib-m4/mbstate_t.m4
index 0a8eae25..6325cf3a 100644
--- a/gnulib-m4/mbstate_t.m4
+++ b/gnulib-m4/mbstate_t.m4
@@ -1,5 +1,5 @@
 # mbstate_t.m4 serial 13
-dnl Copyright (C) 2000-2002, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2000-2002, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/mbtowc.m4 b/gnulib-m4/mbtowc.m4
index e770bbf7..378a4e25 100644
--- a/gnulib-m4/mbtowc.m4
+++ b/gnulib-m4/mbtowc.m4
@@ -1,5 +1,5 @@
 # mbtowc.m4 serial 2
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/memchr.m4 b/gnulib-m4/memchr.m4
index 25d32f0e..0cca69d6 100644
--- a/gnulib-m4/memchr.m4
+++ b/gnulib-m4/memchr.m4
@@ -1,11 +1,13 @@
-# memchr.m4 serial 12
-dnl Copyright (C) 2002-2004, 2009-2016 Free Software Foundation, Inc.
+# memchr.m4 serial 13
+dnl Copyright (C) 2002-2004, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN_ONCE([gl_FUNC_MEMCHR],
 [
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
   dnl Check for prerequisites for memory fence checks.
   gl_FUNC_MMAP_ANON
   AC_CHECK_HEADERS_ONCE([sys/mman.h])
@@ -23,10 +25,10 @@ AC_DEFUN_ONCE([gl_FUNC_MEMCHR],
   if test $HAVE_MEMCHR = 1; then
     # Detect platform-specific bugs in some versions of glibc:
     # memchr should not dereference anything with length 0
-    #   http://bugzilla.redhat.com/499689
+    #   https://bugzilla.redhat.com/show_bug.cgi?id=499689
     # memchr should not dereference overestimated length after a match
-    #   http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737
-    #   http://sourceware.org/bugzilla/show_bug.cgi?id=10162
+    #   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=521737
+    #   https://sourceware.org/bugzilla/show_bug.cgi?id=10162
     # Assume that memchr works on platforms that lack mprotect.
     AC_CACHE_CHECK([whether memchr works], [gl_cv_func_memchr_works],
       [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
@@ -73,12 +75,21 @@ AC_DEFUN_ONCE([gl_FUNC_MEMCHR],
         result |= 4;
     }
   return result;
-]])], [gl_cv_func_memchr_works=yes], [gl_cv_func_memchr_works=no],
-      [dnl Be pessimistic for now.
-       gl_cv_func_memchr_works="guessing no"])])
-    if test "$gl_cv_func_memchr_works" != yes; then
-      REPLACE_MEMCHR=1
-    fi
+]])],
+         [gl_cv_func_memchr_works=yes],
+         [gl_cv_func_memchr_works=no],
+         [case "$host_os" in
+                    # Guess yes on native Windows.
+            mingw*) gl_cv_func_memchr_works="guessing yes" ;;
+                    # Be pessimistic for now.
+            *)      gl_cv_func_memchr_works="guessing no" ;;
+          esac
+         ])
+      ])
+    case "$gl_cv_func_memchr_works" in
+      *yes) ;;
+      *) REPLACE_MEMCHR=1 ;;
+    esac
   fi
 ])
 
diff --git a/gnulib-m4/minmax.m4 b/gnulib-m4/minmax.m4
index 9c43e645..6845fce8 100644
--- a/gnulib-m4/minmax.m4
+++ b/gnulib-m4/minmax.m4
@@ -1,5 +1,5 @@
 # minmax.m4 serial 4
-dnl Copyright (C) 2005, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/mmap-anon.m4 b/gnulib-m4/mmap-anon.m4
index 853c89dc..263687d1 100644
--- a/gnulib-m4/mmap-anon.m4
+++ b/gnulib-m4/mmap-anon.m4
@@ -1,5 +1,5 @@
 # mmap-anon.m4 serial 10
-dnl Copyright (C) 2005, 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/msvc-inval.m4 b/gnulib-m4/msvc-inval.m4
index f5e4c893..33243751 100644
--- a/gnulib-m4/msvc-inval.m4
+++ b/gnulib-m4/msvc-inval.m4
@@ -1,5 +1,5 @@
 # msvc-inval.m4 serial 1
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/msvc-nothrow.m4 b/gnulib-m4/msvc-nothrow.m4
index 58f5c0bc..3014661f 100644
--- a/gnulib-m4/msvc-nothrow.m4
+++ b/gnulib-m4/msvc-nothrow.m4
@@ -1,5 +1,5 @@
 # msvc-nothrow.m4 serial 1
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/multiarch.m4 b/gnulib-m4/multiarch.m4
index 43b5d057..30006cb3 100644
--- a/gnulib-m4/multiarch.m4
+++ b/gnulib-m4/multiarch.m4
@@ -1,5 +1,5 @@
 # multiarch.m4 serial 7
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/nocrash.m4 b/gnulib-m4/nocrash.m4
index d8dd8f13..2c2c5fb4 100644
--- a/gnulib-m4/nocrash.m4
+++ b/gnulib-m4/nocrash.m4
@@ -1,5 +1,5 @@
 # nocrash.m4 serial 4
-dnl Copyright (C) 2005, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/off_t.m4 b/gnulib-m4/off_t.m4
index 282751b4..92c45ef7 100644
--- a/gnulib-m4/off_t.m4
+++ b/gnulib-m4/off_t.m4
@@ -1,5 +1,5 @@
 # off_t.m4 serial 1
-dnl Copyright (C) 2012-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2012-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/printf-frexp.m4 b/gnulib-m4/printf-frexp.m4
index e97dbb34..1e2881cb 100644
--- a/gnulib-m4/printf-frexp.m4
+++ b/gnulib-m4/printf-frexp.m4
@@ -1,5 +1,5 @@
 # printf-frexp.m4 serial 5
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/printf-frexpl.m4 b/gnulib-m4/printf-frexpl.m4
index e5ef4ac2..5c20f3dc 100644
--- a/gnulib-m4/printf-frexpl.m4
+++ b/gnulib-m4/printf-frexpl.m4
@@ -1,5 +1,5 @@
 # printf-frexpl.m4 serial 10
-dnl Copyright (C) 2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/printf.m4 b/gnulib-m4/printf.m4
index c7a14b20..3b167ecb 100644
--- a/gnulib-m4/printf.m4
+++ b/gnulib-m4/printf.m4
@@ -1,5 +1,5 @@
-# printf.m4 serial 52
-dnl Copyright (C) 2003, 2007-2016 Free Software Foundation, Inc.
+# printf.m4 serial 57
+dnl Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -58,8 +58,8 @@ int main ()
         [gl_cv_func_printf_sizes_c99=yes],
         [gl_cv_func_printf_sizes_c99=no],
         [
-changequote(,)dnl
          case "$host_os" in
+changequote(,)dnl
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_sizes_c99="guessing yes";;
                                  # Guess yes on FreeBSD >= 5.
@@ -79,10 +79,19 @@ changequote(,)dnl
            netbsd[1-2]* | netbsdelf[1-2]* | netbsdaout[1-2]* | netbsdcoff[1-2]*)
                                  gl_cv_func_printf_sizes_c99="guessing no";;
            netbsd*)              gl_cv_func_printf_sizes_c99="guessing yes";;
+changequote([,])dnl
+                                 # Guess yes on MSVC, no on mingw.
+           mingw*)               AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                                   ],
+                                   [gl_cv_func_printf_sizes_c99="guessing yes"],
+                                   [gl_cv_func_printf_sizes_c99="guessing no"])
+                                 ;;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_printf_sizes_c99="guessing no";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -122,14 +131,19 @@ int main ()
 }]])],
         [gl_cv_func_printf_long_double=yes],
         [gl_cv_func_printf_long_double=no],
-        [
-changequote(,)dnl
-         case "$host_os" in
-           beos*)        gl_cv_func_printf_long_double="guessing no";;
-           mingw* | pw*) gl_cv_func_printf_long_double="guessing no";;
-           *)            gl_cv_func_printf_long_double="guessing yes";;
+        [case "$host_os" in
+           beos*)  gl_cv_func_printf_long_double="guessing no";;
+                   # Guess yes on MSVC, no on mingw.
+           mingw*) AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                     ],
+                     [gl_cv_func_printf_long_double="guessing yes"],
+                     [gl_cv_func_printf_long_double="guessing no"])
+                   ;;
+           *)      gl_cv_func_printf_long_double="guessing yes";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -217,8 +231,8 @@ int main ()
         [gl_cv_func_printf_infinite=yes],
         [gl_cv_func_printf_infinite=no],
         [
-changequote(,)dnl
          case "$host_os" in
+changequote(,)dnl
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_infinite="guessing yes";;
                                  # Guess yes on FreeBSD >= 6.
@@ -236,10 +250,19 @@ changequote(,)dnl
            netbsd*)              gl_cv_func_printf_infinite="guessing yes";;
                                  # Guess yes on BeOS.
            beos*)                gl_cv_func_printf_infinite="guessing yes";;
+changequote([,])dnl
+                                 # Guess yes on MSVC, no on mingw.
+           mingw*)               AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                                   ],
+                                   [gl_cv_func_printf_infinite="guessing yes"],
+                                   [gl_cv_func_printf_infinite="guessing no"])
+                                 ;;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_printf_infinite="guessing no";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -419,13 +442,12 @@ int main ()
 }]])],
             [gl_cv_func_printf_infinite_long_double=yes],
             [gl_cv_func_printf_infinite_long_double=no],
-            [
-changequote(,)dnl
-             case "$host_cpu" in
+            [case "$host_cpu" in
                                      # Guess no on ia64, x86_64, i386.
                ia64 | x86_64 | i*86) gl_cv_func_printf_infinite_long_double="guessing no";;
                *)
                  case "$host_os" in
+changequote(,)dnl
                                          # Guess yes on glibc systems.
                    *-gnu*)               gl_cv_func_printf_infinite_long_double="guessing yes";;
                                          # Guess yes on FreeBSD >= 6.
@@ -434,12 +456,21 @@ changequote(,)dnl
                                          # Guess yes on HP-UX >= 11.
                    hpux[7-9]* | hpux10*) gl_cv_func_printf_infinite_long_double="guessing no";;
                    hpux*)                gl_cv_func_printf_infinite_long_double="guessing yes";;
+changequote([,])dnl
+                                         # Guess yes on MSVC, no on mingw.
+                   mingw*)               AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                                           ],
+                                           [gl_cv_func_printf_infinite_long_double="guessing yes"],
+                                           [gl_cv_func_printf_infinite_long_double="guessing no"])
+                                         ;;
                                          # If we don't know, assume the worst.
                    *)                    gl_cv_func_printf_infinite_long_double="guessing no";;
                  esac
                  ;;
              esac
-changequote([,])dnl
             ])
         ])
       ;;
@@ -489,8 +520,15 @@ int main ()
           && strcmp (buf, "0x6.0ap-2 33") != 0
           && strcmp (buf, "0xc.14p-3 33") != 0))
     result |= 4;
+  /* This catches a Mac OS X 10.12.4 (Darwin 16.5) bug: it doesn't round.  */
+  if (sprintf (buf, "%.0a %d", 1.51, 33, 44, 55) < 0
+      || (strcmp (buf, "0x2p+0 33") != 0
+          && strcmp (buf, "0x3p-1 33") != 0
+          && strcmp (buf, "0x6p-2 33") != 0
+          && strcmp (buf, "0xcp-3 33") != 0))
+    result |= 4;
   /* This catches a FreeBSD 6.1 bug.  See
-     <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html> */
+     <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html> */
   if (sprintf (buf, "%010a %d", 1.0 / zero, 33, 44, 55) < 0
       || buf[0] == '0')
     result |= 8;
@@ -502,7 +540,7 @@ int main ()
           && strcmp (buf, "0x8.0p-2") != 0))
     result |= 16;
   /* This catches the same Mac OS X 10.3.9 (Darwin 7.9) bug and also a
-     glibc 2.4 bug <http://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
+     glibc 2.4 bug <https://sourceware.org/bugzilla/show_bug.cgi?id=2908>.  */
   if (sprintf (buf, "%.1La", 1.999L) < 0
       || (strcmp (buf, "0x1.0p+1") != 0
           && strcmp (buf, "0x2.0p+0") != 0
@@ -528,6 +566,8 @@ int main ()
                [gl_cv_func_printf_directive_a="guessing yes"],
                [gl_cv_func_printf_directive_a="guessing no"])
              ;;
+                                 # Guess no on native Windows.
+           mingw*)               gl_cv_func_printf_directive_a="guessing no";;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_printf_directive_a="guessing no";;
          esac
@@ -570,8 +610,8 @@ int main ()
         [gl_cv_func_printf_directive_f=yes],
         [gl_cv_func_printf_directive_f=no],
         [
-changequote(,)dnl
          case "$host_os" in
+changequote(,)dnl
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_printf_directive_f="guessing yes";;
                                  # Guess yes on FreeBSD >= 6.
@@ -581,12 +621,21 @@ changequote(,)dnl
            darwin[1-6].*)        gl_cv_func_printf_directive_f="guessing no";;
            darwin*)              gl_cv_func_printf_directive_f="guessing yes";;
                                  # Guess yes on Solaris >= 2.10.
-           solaris2.[1-9][0-9]*) gl_cv_func_printf_sizes_c99="guessing yes";;
-           solaris*)             gl_cv_func_printf_sizes_c99="guessing no";;
+           solaris2.[1-9][0-9]*) gl_cv_func_printf_directive_f="guessing yes";;
+           solaris*)             gl_cv_func_printf_directive_f="guessing no";;
+changequote([,])dnl
+                                 # Guess yes on MSVC, no on mingw.
+           mingw*)               AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                                   ],
+                                   [gl_cv_func_printf_directive_f="guessing yes"],
+                                   [gl_cv_func_printf_directive_f="guessing no"])
+                                 ;;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_printf_directive_f="guessing no";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -638,13 +687,11 @@ int main ()
 }]])],
         [gl_cv_func_printf_directive_n=yes],
         [gl_cv_func_printf_directive_n=no],
-        [
-changequote(,)dnl
-         case "$host_os" in
+        [case "$host_os" in
+                   # Guess no on native Windows.
            mingw*) gl_cv_func_printf_directive_n="guessing no";;
            *)      gl_cv_func_printf_directive_n="guessing yes";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -719,12 +766,14 @@ int main ()
         [
 changequote(,)dnl
          case "$host_os" in
-           openbsd*)        gl_cv_func_printf_directive_ls="guessing no";;
-           irix*)           gl_cv_func_printf_directive_ls="guessing no";;
-           solaris*)        gl_cv_func_printf_directive_ls="guessing no";;
-           cygwin*)         gl_cv_func_printf_directive_ls="guessing no";;
-           beos* | haiku*)  gl_cv_func_printf_directive_ls="guessing no";;
-           *)               gl_cv_func_printf_directive_ls="guessing yes";;
+           openbsd*)       gl_cv_func_printf_directive_ls="guessing no";;
+           irix*)          gl_cv_func_printf_directive_ls="guessing no";;
+           solaris*)       gl_cv_func_printf_directive_ls="guessing no";;
+           cygwin*)        gl_cv_func_printf_directive_ls="guessing no";;
+           beos* | haiku*) gl_cv_func_printf_directive_ls="guessing no";;
+                           # Guess yes on native Windows.
+           mingw*)         gl_cv_func_printf_directive_ls="guessing yes";;
+           *)              gl_cv_func_printf_directive_ls="guessing yes";;
          esac
 changequote([,])dnl
         ])
@@ -763,6 +812,7 @@ changequote(,)dnl
            netbsd[1-3]* | netbsdelf[1-3]* | netbsdaout[1-3]* | netbsdcoff[1-3]*)
                          gl_cv_func_printf_positions="guessing no";;
            beos*)        gl_cv_func_printf_positions="guessing no";;
+                         # Guess no on native Windows.
            mingw* | pw*) gl_cv_func_printf_positions="guessing no";;
            *)            gl_cv_func_printf_positions="guessing yes";;
          esac
@@ -801,6 +851,7 @@ changequote(,)dnl
          case "$host_os" in
            cygwin*)      gl_cv_func_printf_flag_grouping="guessing no";;
            netbsd*)      gl_cv_func_printf_flag_grouping="guessing no";;
+                         # Guess no on native Windows.
            mingw* | pw*) gl_cv_func_printf_flag_grouping="guessing no";;
            *)            gl_cv_func_printf_flag_grouping="guessing yes";;
          esac
@@ -811,7 +862,7 @@ changequote([,])dnl
 
 dnl Test whether the *printf family of functions supports the - flag correctly.
 dnl (ISO C99.) See
-dnl <http://lists.gnu.org/archive/html/bug-coreutils/2008-02/msg00035.html>
+dnl <https://lists.gnu.org/r/bug-coreutils/2008-02/msg00035.html>
 dnl Result is gl_cv_func_printf_flag_leftadjust.
 
 AC_DEFUN([gl_PRINTF_FLAG_LEFTADJUST],
@@ -843,6 +894,8 @@ changequote(,)dnl
            hpux11*) gl_cv_func_printf_flag_leftadjust="guessing yes";;
                     # Guess no on HP-UX 10 and older.
            hpux*)   gl_cv_func_printf_flag_leftadjust="guessing no";;
+                    # Guess yes on native Windows.
+           mingw*)  gl_cv_func_printf_flag_leftadjust="guessing yes";;
                     # Guess yes otherwise.
            *)       gl_cv_func_printf_flag_leftadjust="guessing yes";;
          esac
@@ -853,7 +906,7 @@ changequote([,])dnl
 
 dnl Test whether the *printf family of functions supports padding of non-finite
 dnl values with the 0 flag correctly. (ISO C99 + TC1 + TC2.) See
-dnl <http://lists.gnu.org/archive/html/bug-gnulib/2007-04/msg00107.html>
+dnl <https://lists.gnu.org/r/bug-gnulib/2007-04/msg00107.html>
 dnl Result is gl_cv_func_printf_flag_zero.
 
 AC_DEFUN([gl_PRINTF_FLAG_ZERO],
@@ -886,6 +939,8 @@ changequote(,)dnl
            *-gnu*) gl_cv_func_printf_flag_zero="guessing yes";;
                    # Guess yes on BeOS.
            beos*)  gl_cv_func_printf_flag_zero="guessing yes";;
+                   # Guess no on native Windows.
+           mingw*) gl_cv_func_printf_flag_zero="guessing no";;
                    # If we don't know, assume the worst.
            *)      gl_cv_func_printf_flag_zero="guessing no";;
          esac
@@ -1153,6 +1208,8 @@ changequote(,)dnl
            netbsd*)              gl_cv_func_snprintf_truncation_c99="guessing yes";;
                                  # Guess yes on BeOS.
            beos*)                gl_cv_func_snprintf_truncation_c99="guessing yes";;
+                                 # Guess no on native Windows.
+           mingw*)               gl_cv_func_snprintf_truncation_c99="guessing no";;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_snprintf_truncation_c99="guessing no";;
          esac
@@ -1216,9 +1273,8 @@ int main ()
 }]])],
         [gl_cv_func_snprintf_retval_c99=yes],
         [gl_cv_func_snprintf_retval_c99=no],
-        [
+        [case "$host_os" in
 changequote(,)dnl
-         case "$host_os" in
                                  # Guess yes on glibc systems.
            *-gnu*)               gl_cv_func_snprintf_retval_c99="guessing yes";;
                                  # Guess yes on FreeBSD >= 5.
@@ -1243,10 +1299,19 @@ changequote(,)dnl
            netbsd*)              gl_cv_func_snprintf_retval_c99="guessing yes";;
                                  # Guess yes on BeOS.
            beos*)                gl_cv_func_snprintf_retval_c99="guessing yes";;
+changequote([,])dnl
+                                 # Guess yes on MSVC, no on mingw.
+           mingw*)               AC_EGREP_CPP([Known], [
+#ifdef _MSC_VER
+ Known
+#endif
+                                   ],
+                                   [gl_cv_func_snprintf_retval_c99="guessing yes"],
+                                   [gl_cv_func_snprintf_retval_c99="guessing no"])
+                                 ;;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_snprintf_retval_c99="guessing no";;
          esac
-changequote([,])dnl
         ])
     ])
 ])
@@ -1326,6 +1391,8 @@ changequote(,)dnl
            netbsd*)              gl_cv_func_snprintf_directive_n="guessing yes";;
                                  # Guess yes on BeOS.
            beos*)                gl_cv_func_snprintf_directive_n="guessing yes";;
+                                 # Guess no on native Windows.
+           mingw*)               gl_cv_func_snprintf_directive_n="guessing no";;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_snprintf_directive_n="guessing no";;
          esac
@@ -1342,6 +1409,7 @@ dnl Result is gl_cv_func_snprintf_size1.
 AC_DEFUN([gl_SNPRINTF_SIZE1],
 [
   AC_REQUIRE([AC_PROG_CC])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
   AC_REQUIRE([gl_SNPRINTF_PRESENCE])
   AC_CACHE_CHECK([whether snprintf respects a size of 1],
     [gl_cv_func_snprintf_size1],
@@ -1371,7 +1439,12 @@ int main()
 }]])],
         [gl_cv_func_snprintf_size1=yes],
         [gl_cv_func_snprintf_size1=no],
-        [gl_cv_func_snprintf_size1="guessing yes"])
+        [case "$host_os" in
+                   # Guess yes on native Windows.
+           mingw*) gl_cv_func_snprintf_size1="guessing yes" ;;
+           *)      gl_cv_func_snprintf_size1="guessing yes" ;;
+         esac
+        ])
     ])
 ])
 
@@ -1467,7 +1540,7 @@ changequote(,)dnl
            netbsd*)              gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
                                  # Guess yes on BeOS.
            beos*)                gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
-                                 # Guess yes on mingw.
+                                 # Guess yes on native Windows.
            mingw* | pw*)         gl_cv_func_vsnprintf_zerosize_c99="guessing yes";;
                                  # If we don't know, assume the worst.
            *)                    gl_cv_func_vsnprintf_zerosize_c99="guessing no";;
@@ -1533,7 +1606,8 @@ dnl   OpenBSD 3.9, 4.0               .  .  #  #  #  #  .  #  .  #  .  #  .  #  .
 dnl   Cygwin 1.7.0 (2009)            .  .  .  #  .  .  .  ?  .  .  .  .  .  ?  .  .  .  .  .  .
 dnl   Cygwin 1.5.25 (2008)           .  .  .  #  #  .  .  #  .  .  .  .  .  #  .  .  .  .  .  .
 dnl   Cygwin 1.5.19 (2006)           #  .  .  #  #  #  .  #  .  #  .  #  #  #  .  .  .  .  .  .
-dnl   Solaris 11 2011-11             .  .  #  #  #  .  .  #  .  .  .  #  .  .  .  .  .  .  .  .
+dnl   Solaris 11.3                   .  .  .  .  #  .  .  #  .  .  .  .  .  .  .  .  .  .  .  .
+dnl   Solaris 11.0                   .  .  #  #  #  .  .  #  .  .  .  #  .  .  .  .  .  .  .  .
 dnl   Solaris 10                     .  .  #  #  #  .  .  #  .  .  .  #  #  .  .  .  .  .  .  .
 dnl   Solaris 2.6 ... 9              #  .  #  #  #  #  .  #  .  .  .  #  #  .  .  .  #  .  .  .
 dnl   Solaris 2.5.1                  #  .  #  #  #  #  .  #  .  .  .  #  .  .  #  #  #  #  #  #
diff --git a/gnulib-m4/pthread_rwlock_rdlock.m4 b/gnulib-m4/pthread_rwlock_rdlock.m4
new file mode 100644
index 00000000..da69865f
--- /dev/null
+++ b/gnulib-m4/pthread_rwlock_rdlock.m4
@@ -0,0 +1,163 @@
+# pthread_rwlock_rdlock.m4 serial 1
+dnl Copyright (C) 2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl From Bruno Haible.
+dnl Inspired by
+dnl https://github.com/linux-test-project/ltp/blob/master/testcases/open_posix_testsuite/conformance/interfaces/pthread_rwlock_rdlock/2-2.c
+dnl by Intel Corporation.
+
+dnl Test whether in a situation where
+dnl   - an rwlock is taken by a reader and has a writer waiting,
+dnl   - an additional reader requests the lock,
+dnl   - the waiting writer and the requesting reader threads have the same
+dnl     priority,
+dnl the requesting reader thread gets blocked, so that at some point the
+dnl waiting writer can acquire the lock.
+dnl Without such a guarantee, when there a N readers and each of the readers
+dnl spends more than 1/Nth of the time with the lock held, there is a high
+dnl probability that the waiting writer will not get the lock in a given finite
+dnl time, a phenomenon called "writer starvation".
+dnl Without such a guarantee, applications have a hard time avoiding writer
+dnl starvation.
+dnl
+dnl POSIX:2008 makes this requirement only for implementations that support TPS
+dnl (Thread Priority Scheduling) and only for the scheduling policies SCHED_FIFO
+dnl and SCHED_RR, see
+dnl http://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_rwlock_rdlock.html
+dnl but test verifies the guarantee regardless of TPS and regardless of
+dnl scheduling policy.
+AC_DEFUN([gl_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER],
+[
+  AC_REQUIRE([gl_THREADLIB_EARLY])
+  AC_CACHE_CHECK([whether pthread_rwlock_rdlock prefers a writer to a reader],
+    [gl_cv_pthread_rwlock_rdlock_prefer_writer],
+    [save_LIBS="$LIBS"
+     LIBS="$LIBS $LIBMULTITHREAD"
+     AC_RUN_IFELSE(
+       [AC_LANG_SOURCE([[
+#include <errno.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+#define SUCCEED() exit (0)
+#define FAILURE() exit (1)
+#define UNEXPECTED(n) (exit (10 + (n)))
+
+/* The main thread creates the waiting writer and the requesting reader threads
+   in the default way; this guarantees that they have the same priority.
+   We can reuse the main thread as first reader thread.  */
+
+static pthread_rwlock_t lock;
+static pthread_t reader1;
+static pthread_t writer;
+static pthread_t reader2;
+static pthread_t timer;
+/* Used to pass control from writer to reader2 and from reader2 to timer,
+   as in a relay race.
+   Passing control from one running thread to another running thread
+   is most likely faster than to create the second thread.  */
+static pthread_mutex_t baton;
+
+static void *
+timer_func (void *ignored)
+{
+  /* Step 13 (can be before or after step 12):
+     The timer thread takes the baton, then waits a moment to make sure
+     it can tell whether the second reader thread is blocked at step 12.  */
+  if (pthread_mutex_lock (&baton))
+    UNEXPECTED (13);
+  usleep (100000);
+  /* By the time we get here, it's clear that the second reader thread is
+     blocked at step 12.  This is the desired behaviour.  */
+  SUCCEED ();
+}
+
+static void *
+reader2_func (void *ignored)
+{
+  int err;
+
+  /* Step 8 (can be before or after step 7):
+     The second reader thread takes the baton, then waits a moment to make sure
+     the writer thread has reached step 7.  */
+  if (pthread_mutex_lock (&baton))
+    UNEXPECTED (8);
+  usleep (100000);
+  /* Step 9: The second reader thread requests the lock.  */
+  err = pthread_rwlock_tryrdlock (&lock);
+  if (err == 0)
+    FAILURE ();
+  else if (err != EBUSY)
+    UNEXPECTED (9);
+  /* Step 10: Launch a timer, to test whether the next call blocks.  */
+  if (pthread_create (&timer, NULL, timer_func, NULL))
+    UNEXPECTED (10);
+  /* Step 11: Release the baton.  */
+  if (pthread_mutex_unlock (&baton))
+    UNEXPECTED (11);
+  /* Step 12: The second reader thread requests the lock.  */
+  err = pthread_rwlock_rdlock (&lock);
+  if (err == 0)
+    FAILURE ();
+  else
+    UNEXPECTED (12);
+}
+
+static void *
+writer_func (void *ignored)
+{
+  /* Step 4: Take the baton, so that the second reader thread does not go ahead
+     too early.  */
+  if (pthread_mutex_lock (&baton))
+    UNEXPECTED (4);
+  /* Step 5: Create the second reader thread.  */
+  if (pthread_create (&reader2, NULL, reader2_func, NULL))
+    UNEXPECTED (5);
+  /* Step 6: Release the baton.  */
+  if (pthread_mutex_unlock (&baton))
+    UNEXPECTED (6);
+  /* Step 7: The writer thread requests the lock.  */
+  if (pthread_rwlock_wrlock (&lock))
+    UNEXPECTED (7);
+  return NULL;
+}
+
+int
+main ()
+{
+  reader1 = pthread_self ();
+
+  /* Step 1: The main thread initializes the lock and the baton.  */
+  if (pthread_rwlock_init (&lock, NULL))
+    UNEXPECTED (1);
+  if (pthread_mutex_init (&baton, NULL))
+    UNEXPECTED (1);
+  /* Step 2: The main thread acquires the lock as a reader.  */
+  if (pthread_rwlock_rdlock (&lock))
+    UNEXPECTED (2);
+  /* Step 3: Create the writer thread.  */
+  if (pthread_create (&writer, NULL, writer_func, NULL))
+    UNEXPECTED (3);
+  /* Job done.  Go to sleep.  */
+  for (;;)
+    {
+      sleep (1);
+    }
+}
+]])],
+       [gl_cv_pthread_rwlock_rdlock_prefer_writer=yes],
+       [gl_cv_pthread_rwlock_rdlock_prefer_writer=no],
+       [gl_cv_pthread_rwlock_rdlock_prefer_writer="guessing yes"])
+     LIBS="$save_LIBS"
+    ])
+  case "$gl_cv_pthread_rwlock_rdlock_prefer_writer" in
+    *yes)
+      AC_DEFINE([HAVE_PTHREAD_RWLOCK_RDLOCK_PREFER_WRITER], [1],
+        [Define if the 'pthread_rwlock_rdlock' function prefers a writer to a reader.])
+      ;;
+  esac
+])
diff --git a/gnulib-m4/pthread_sigmask.m4 b/gnulib-m4/pthread_sigmask.m4
new file mode 100644
index 00000000..ce36aaed
--- /dev/null
+++ b/gnulib-m4/pthread_sigmask.m4
@@ -0,0 +1,279 @@
+# pthread_sigmask.m4 serial 16
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_PTHREAD_SIGMASK],
+[
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+
+  AC_CHECK_FUNCS_ONCE([pthread_sigmask])
+  LIB_PTHREAD_SIGMASK=
+
+  dnl Test whether the gnulib module 'threadlib' is in use.
+  dnl Some packages like Emacs use --avoid=threadlib.
+  dnl Write the symbol in such a way that it does not cause 'aclocal' to pick
+  dnl the threadlib.m4 file that is installed in $PREFIX/share/aclocal/.
+  m4_ifdef([gl_][THREADLIB], [
+    AC_REQUIRE([gl_][THREADLIB])
+
+    if test "$gl_threads_api" = posix; then
+      if test $ac_cv_func_pthread_sigmask = yes; then
+        dnl pthread_sigmask is available without -lpthread.
+        :
+      else
+        if test -n "$LIBMULTITHREAD"; then
+          AC_CACHE_CHECK([for pthread_sigmask in $LIBMULTITHREAD],
+            [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD],
+            [gl_save_LIBS="$LIBS"
+             LIBS="$LIBS $LIBMULTITHREAD"
+             AC_LINK_IFELSE(
+               [AC_LANG_PROGRAM(
+                  [[#include <pthread.h>
+                    #include <signal.h>
+                  ]],
+                  [[return pthread_sigmask (0, (sigset_t *) 0, (sigset_t *) 0);]])
+               ],
+               [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=yes],
+               [gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=no])
+             LIBS="$gl_save_LIBS"
+            ])
+          if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then
+            AC_CACHE_CHECK([whether pthread_sigmask is only a macro],
+              [gl_cv_func_pthread_sigmask_is_macro],
+              [gl_save_LIBS="$LIBS"
+               LIBS="$LIBS $LIBMULTITHREAD"
+               AC_LINK_IFELSE(
+                 [AC_LANG_PROGRAM(
+                    [[#include <pthread.h>
+                      #include <signal.h>
+                      #undef pthread_sigmask
+                    ]],
+                    [[return pthread_sigmask (0, (sigset_t *) 0, (sigset_t *) 0);]])
+                 ],
+                 [gl_cv_func_pthread_sigmask_is_macro=no],
+                 [gl_cv_func_pthread_sigmask_is_macro=yes])
+               LIBS="$gl_save_LIBS"
+              ])
+            if test $gl_cv_func_pthread_sigmask_is_macro = yes; then
+              dnl On MinGW pthread_sigmask is just a macro which always returns 0.
+              dnl It does not exist as a real function, which is required by POSIX.
+              REPLACE_PTHREAD_SIGMASK=1
+              gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD=no
+            fi
+          fi
+          if test $gl_cv_func_pthread_sigmask_in_LIBMULTITHREAD = yes; then
+            dnl pthread_sigmask is available with -pthread or -lpthread.
+            LIB_PTHREAD_SIGMASK="$LIBMULTITHREAD"
+          else
+            dnl pthread_sigmask is not available at all.
+            HAVE_PTHREAD_SIGMASK=0
+          fi
+        else
+          dnl pthread_sigmask is not available at all.
+          HAVE_PTHREAD_SIGMASK=0
+        fi
+      fi
+    else
+      dnl pthread_sigmask may exist but does not interoperate with the chosen
+      dnl multithreading facility.
+      dnl If "$gl_threads_api" = pth, we could use the function pth_sigmask,
+      dnl but it is equivalent to sigprocmask, so we choose to emulate
+      dnl pthread_sigmask with sigprocmask also in this case. This yields fewer
+      dnl link dependencies.
+      if test $ac_cv_func_pthread_sigmask = yes; then
+        REPLACE_PTHREAD_SIGMASK=1
+      else
+        HAVE_PTHREAD_SIGMASK=0
+      fi
+    fi
+  ], [
+    dnl The module 'threadlib' is not in use, due to --avoid=threadlib being
+    dnl specified.
+    dnl The package either has prepared CPPFLAGS and LIBS for use of POSIX:2008
+    dnl threads, or wants to build single-threaded programs.
+    if test $ac_cv_func_pthread_sigmask = yes; then
+      dnl pthread_sigmask exists and does not require extra libraries.
+      dnl Assume that it is declared.
+      :
+    else
+      dnl pthread_sigmask either does not exist or needs extra libraries.
+      HAVE_PTHREAD_SIGMASK=0
+      dnl Define the symbol rpl_pthread_sigmask, not pthread_sigmask,
+      dnl so as to not accidentally override the system's pthread_sigmask
+      dnl symbol from libpthread. This is necessary on IRIX 6.5.
+      REPLACE_PTHREAD_SIGMASK=1
+    fi
+  ])
+
+  AC_SUBST([LIB_PTHREAD_SIGMASK])
+  dnl We don't need a variable LTLIB_PTHREAD_SIGMASK, because when
+  dnl "$gl_threads_api" = posix, $LTLIBMULTITHREAD and $LIBMULTITHREAD are the
+  dnl same.
+
+  dnl Now test for some bugs in the system function.
+  if test $HAVE_PTHREAD_SIGMASK = 1; then
+    AC_REQUIRE([AC_PROG_CC])
+    AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+
+    dnl On FreeBSD 6.4, HP-UX 11.31, Solaris 9, in programs that are not linked
+    dnl with -lpthread, the pthread_sigmask() function always returns 0 and has
+    dnl no effect.
+    if test -z "$LIB_PTHREAD_SIGMASK"; then
+      case " $LIBS " in
+        *' -pthread '*) ;;
+        *' -lpthread '*) ;;
+	*)
+	  AC_CACHE_CHECK([whether pthread_sigmask works without -lpthread],
+	    [gl_cv_func_pthread_sigmask_in_libc_works],
+	    [
+	      AC_RUN_IFELSE(
+		[AC_LANG_SOURCE([[
+		   #include <pthread.h>
+		   #include <signal.h>
+		   #include <stddef.h>
+		   int main ()
+		   {
+		     sigset_t set;
+		     sigemptyset (&set);
+		     return pthread_sigmask (1729, &set, NULL) != 0;
+		   }]])],
+		[gl_cv_func_pthread_sigmask_in_libc_works=no],
+		[gl_cv_func_pthread_sigmask_in_libc_works=yes],
+		[
+		 changequote(,)dnl
+		 case "$host_os" in
+		   freebsd* | hpux* | solaris | solaris2.[2-9]*)
+		     gl_cv_func_pthread_sigmask_in_libc_works="guessing no";;
+		   *)
+		     gl_cv_func_pthread_sigmask_in_libc_works="guessing yes";;
+		 esac
+		 changequote([,])dnl
+		])
+	    ])
+	  case "$gl_cv_func_pthread_sigmask_in_libc_works" in
+	    *no)
+	      REPLACE_PTHREAD_SIGMASK=1
+	      AC_DEFINE([PTHREAD_SIGMASK_INEFFECTIVE], [1],
+		[Define to 1 if pthread_sigmask may return 0 and have no effect.])
+	      ;;
+	  esac;;
+      esac
+    fi
+
+    dnl On Cygwin 1.7.5, the pthread_sigmask() has a wrong return value
+    dnl convention: Upon failure, it returns -1 and sets errno.
+    AC_CACHE_CHECK([whether pthread_sigmask returns error numbers],
+      [gl_cv_func_pthread_sigmask_return_works],
+      [
+        gl_save_LIBS="$LIBS"
+        LIBS="$LIBS $LIB_PTHREAD_SIGMASK"
+        AC_RUN_IFELSE(
+          [AC_LANG_SOURCE([[
+#include <pthread.h>
+#include <signal.h>
+#include <stddef.h>
+int main ()
+{
+  sigset_t set;
+  sigemptyset (&set);
+  if (pthread_sigmask (1729, &set, NULL) == -1)
+    return 1;
+  return 0;
+}]])],
+          [gl_cv_func_pthread_sigmask_return_works=yes],
+          [gl_cv_func_pthread_sigmask_return_works=no],
+          [case "$host_os" in
+             cygwin*)
+               gl_cv_func_pthread_sigmask_return_works="guessing no";;
+             *)
+               gl_cv_func_pthread_sigmask_return_works="guessing yes";;
+           esac
+          ])
+        LIBS="$gl_save_LIBS"
+      ])
+    case "$gl_cv_func_pthread_sigmask_return_works" in
+      *no)
+        REPLACE_PTHREAD_SIGMASK=1
+        AC_DEFINE([PTHREAD_SIGMASK_FAILS_WITH_ERRNO], [1],
+          [Define to 1 if pthread_sigmask(), when it fails, returns -1 and sets errno.])
+        ;;
+    esac
+
+    dnl On IRIX 6.5, in a single-threaded program, pending signals are not
+    dnl immediately delivered when they are unblocked through pthread_sigmask,
+    dnl only a little while later.
+    AC_CACHE_CHECK([whether pthread_sigmask unblocks signals correctly],
+      [gl_cv_func_pthread_sigmask_unblock_works],
+      [
+        case "$host_os" in
+          irix*)
+            gl_cv_func_pthread_sigmask_unblock_works="guessing no";;
+          *)
+            gl_cv_func_pthread_sigmask_unblock_works="guessing yes";;
+        esac
+        m4_ifdef([gl_][THREADLIB],
+          [dnl Link against $LIBMULTITHREAD, not only $LIB_PTHREAD_SIGMASK.
+           dnl Otherwise we get a false positive on those platforms where
+           dnl $gl_cv_func_pthread_sigmask_in_libc_works is "no".
+           gl_save_LIBS=$LIBS
+           LIBS="$LIBS $LIBMULTITHREAD"])
+        AC_RUN_IFELSE(
+          [AC_LANG_SOURCE([[
+#include <pthread.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+static volatile int sigint_occurred;
+static void
+sigint_handler (int sig)
+{
+  sigint_occurred++;
+}
+int main ()
+{
+  sigset_t set;
+  int pid = getpid ();
+  char command[80];
+  signal (SIGINT, sigint_handler);
+  sigemptyset (&set);
+  sigaddset (&set, SIGINT);
+  if (!(pthread_sigmask (SIG_BLOCK, &set, NULL) == 0))
+    return 1;
+  sprintf (command, "sh -c 'sleep 1; kill -%d %d' &", SIGINT, pid);
+  if (!(system (command) == 0))
+    return 2;
+  sleep (2);
+  if (!(sigint_occurred == 0))
+    return 3;
+  if (!(pthread_sigmask (SIG_UNBLOCK, &set, NULL) == 0))
+    return 4;
+  if (!(sigint_occurred == 1)) /* This fails on IRIX.  */
+    return 5;
+  return 0;
+}]])],
+          [:],
+          [gl_cv_func_pthread_sigmask_unblock_works=no],
+          [:])
+        m4_ifdef([gl_][THREADLIB], [LIBS=$gl_save_LIBS])
+      ])
+    case "$gl_cv_func_pthread_sigmask_unblock_works" in
+      *no)
+        REPLACE_PTHREAD_SIGMASK=1
+        AC_DEFINE([PTHREAD_SIGMASK_UNBLOCK_BUG], [1],
+          [Define to 1 if pthread_sigmask() unblocks signals incorrectly.])
+        ;;
+    esac
+  fi
+])
+
+# Prerequisite of lib/pthread_sigmask.c.
+AC_DEFUN([gl_PREREQ_PTHREAD_SIGMASK],
+[
+  if test $HAVE_PTHREAD_SIGMASK = 1; then
+    AC_DEFINE([HAVE_PTHREAD_SIGMASK], [1],
+      [Define to 1 if the pthread_sigmask function can be used (despite bugs).])
+  fi
+])
diff --git a/gnulib-m4/putenv.m4 b/gnulib-m4/putenv.m4
index c3c30d84..08ae4169 100644
--- a/gnulib-m4/putenv.m4
+++ b/gnulib-m4/putenv.m4
@@ -1,5 +1,5 @@
-# putenv.m4 serial 20
-dnl Copyright (C) 2002-2016 Free Software Foundation, Inc.
+# putenv.m4 serial 21
+dnl Copyright (C) 2002-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -36,6 +36,8 @@ AC_DEFUN([gl_FUNC_PUTENV],
              [case "$host_os" in
                         # Guess yes on glibc systems.
                 *-gnu*) gl_cv_func_svid_putenv="guessing yes" ;;
+                        # Guess no on native Windows.
+                mingw*) gl_cv_func_svid_putenv="guessing no" ;;
                         # If we don't know, assume the worst.
                 *)      gl_cv_func_svid_putenv="guessing no" ;;
               esac
diff --git a/gnulib-m4/raise.m4 b/gnulib-m4/raise.m4
new file mode 100644
index 00000000..fe6e0685
--- /dev/null
+++ b/gnulib-m4/raise.m4
@@ -0,0 +1,36 @@
+# raise.m4 serial 4
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_RAISE],
+[
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  AC_CHECK_FUNCS([raise])
+  if test $ac_cv_func_raise = no; then
+    HAVE_RAISE=0
+  else
+    m4_ifdef([gl_MSVC_INVAL], [
+      AC_REQUIRE([gl_MSVC_INVAL])
+      if test $HAVE_MSVC_INVALID_PARAMETER_HANDLER = 1; then
+        REPLACE_RAISE=1
+      fi
+    ])
+    m4_ifdef([gl_SIGNALBLOCKING], [
+      gl_SIGNALBLOCKING
+      if test $HAVE_POSIX_SIGNALBLOCKING = 0; then
+        m4_ifdef([gl_SIGNAL_SIGPIPE], [
+          gl_SIGNAL_SIGPIPE
+          if test $gl_cv_header_signal_h_SIGPIPE != yes; then
+            REPLACE_RAISE=1
+          fi
+        ], [:])
+      fi
+    ])
+  fi
+])
+
+# Prerequisites of lib/raise.c.
+AC_DEFUN([gl_PREREQ_RAISE], [:])
diff --git a/gnulib-m4/relocatable-lib.m4 b/gnulib-m4/relocatable-lib.m4
index 011c62b6..24572ee0 100644
--- a/gnulib-m4/relocatable-lib.m4
+++ b/gnulib-m4/relocatable-lib.m4
@@ -1,5 +1,5 @@
 # relocatable-lib.m4 serial 6
-dnl Copyright (C) 2003, 2005-2007, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2005-2007, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/setenv.m4 b/gnulib-m4/setenv.m4
index 5d49aba6..005aa8cf 100644
--- a/gnulib-m4/setenv.m4
+++ b/gnulib-m4/setenv.m4
@@ -1,5 +1,5 @@
 # setenv.m4 serial 26
-dnl Copyright (C) 2001-2004, 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2001-2004, 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/setlocale.m4 b/gnulib-m4/setlocale.m4
index a359069e..879317de 100644
--- a/gnulib-m4/setlocale.m4
+++ b/gnulib-m4/setlocale.m4
@@ -1,5 +1,5 @@
 # setlocale.m4 serial 4
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/signal_h.m4 b/gnulib-m4/signal_h.m4
new file mode 100644
index 00000000..eaf5ce98
--- /dev/null
+++ b/gnulib-m4/signal_h.m4
@@ -0,0 +1,83 @@
+# signal_h.m4 serial 18
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_SIGNAL_H],
+[
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+  AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T])
+  gl_NEXT_HEADERS([signal.h])
+
+# AIX declares sig_atomic_t to already include volatile, and C89 compilers
+# then choke on 'volatile sig_atomic_t'.  C99 requires that it compile.
+  AC_CHECK_TYPE([volatile sig_atomic_t], [],
+    [HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=0], [[
+#include <signal.h>
+    ]])
+
+  dnl Ensure the type pid_t gets defined.
+  AC_REQUIRE([AC_TYPE_PID_T])
+
+  AC_REQUIRE([AC_TYPE_UID_T])
+
+  dnl Persuade glibc <signal.h> to define sighandler_t.
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+  AC_CHECK_TYPE([sighandler_t], [], [HAVE_SIGHANDLER_T=0], [[
+#include <signal.h>
+    ]])
+
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use.
+  gl_WARN_ON_USE_PREPARE([[#include <signal.h>
+    ]], [pthread_sigmask sigaction
+    sigaddset sigdelset sigemptyset sigfillset sigismember
+    sigpending sigprocmask])
+])
+
+AC_DEFUN([gl_CHECK_TYPE_SIGSET_T],
+[
+  AC_CHECK_TYPES([sigset_t],
+    [gl_cv_type_sigset_t=yes], [gl_cv_type_sigset_t=no],
+    [[
+      #include <signal.h>
+      /* Mingw defines sigset_t not in <signal.h>, but in <sys/types.h>.  */
+      #include <sys/types.h>
+    ]])
+  if test $gl_cv_type_sigset_t != yes; then
+    HAVE_SIGSET_T=0
+  fi
+])
+
+AC_DEFUN([gl_SIGNAL_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
+])
+
+AC_DEFUN([gl_SIGNAL_H_DEFAULTS],
+[
+  GNULIB_PTHREAD_SIGMASK=0;    AC_SUBST([GNULIB_PTHREAD_SIGMASK])
+  GNULIB_RAISE=0;              AC_SUBST([GNULIB_RAISE])
+  GNULIB_SIGNAL_H_SIGPIPE=0;   AC_SUBST([GNULIB_SIGNAL_H_SIGPIPE])
+  GNULIB_SIGPROCMASK=0;        AC_SUBST([GNULIB_SIGPROCMASK])
+  GNULIB_SIGACTION=0;          AC_SUBST([GNULIB_SIGACTION])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_POSIX_SIGNALBLOCKING=1; AC_SUBST([HAVE_POSIX_SIGNALBLOCKING])
+  HAVE_PTHREAD_SIGMASK=1;      AC_SUBST([HAVE_PTHREAD_SIGMASK])
+  HAVE_RAISE=1;                AC_SUBST([HAVE_RAISE])
+  HAVE_SIGSET_T=1;             AC_SUBST([HAVE_SIGSET_T])
+  HAVE_SIGINFO_T=1;            AC_SUBST([HAVE_SIGINFO_T])
+  HAVE_SIGACTION=1;            AC_SUBST([HAVE_SIGACTION])
+  HAVE_STRUCT_SIGACTION_SA_SIGACTION=1;
+                               AC_SUBST([HAVE_STRUCT_SIGACTION_SA_SIGACTION])
+  HAVE_TYPE_VOLATILE_SIG_ATOMIC_T=1;
+                               AC_SUBST([HAVE_TYPE_VOLATILE_SIG_ATOMIC_T])
+  HAVE_SIGHANDLER_T=1;         AC_SUBST([HAVE_SIGHANDLER_T])
+  REPLACE_PTHREAD_SIGMASK=0;   AC_SUBST([REPLACE_PTHREAD_SIGMASK])
+  REPLACE_RAISE=0;             AC_SUBST([REPLACE_RAISE])
+])
diff --git a/gnulib-m4/signalblocking.m4 b/gnulib-m4/signalblocking.m4
new file mode 100644
index 00000000..26041b11
--- /dev/null
+++ b/gnulib-m4/signalblocking.m4
@@ -0,0 +1,25 @@
+# signalblocking.m4 serial 14
+dnl Copyright (C) 2001-2002, 2006-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+# Determine available signal blocking primitives. Three different APIs exist:
+# 1) POSIX: sigemptyset, sigaddset, sigprocmask
+# 2) SYSV: sighold, sigrelse
+# 3) BSD: sigblock, sigsetmask
+# For simplicity, here we check only for the POSIX signal blocking.
+AC_DEFUN([gl_SIGNALBLOCKING],
+[
+  AC_REQUIRE([gl_SIGNAL_H_DEFAULTS])
+  AC_REQUIRE([gl_CHECK_TYPE_SIGSET_T])
+  if test $gl_cv_type_sigset_t = yes; then
+    AC_CHECK_FUNC([sigprocmask], [gl_cv_func_sigprocmask=1])
+  fi
+  if test -z "$gl_cv_func_sigprocmask"; then
+    HAVE_POSIX_SIGNALBLOCKING=0
+  fi
+])
+
+# Prerequisites of lib/sigprocmask.c.
+AC_DEFUN([gl_PREREQ_SIGPROCMASK], [:])
diff --git a/gnulib-m4/signbit.m4 b/gnulib-m4/signbit.m4
index e42f1831..db60ab72 100644
--- a/gnulib-m4/signbit.m4
+++ b/gnulib-m4/signbit.m4
@@ -1,5 +1,5 @@
-# signbit.m4 serial 13
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# signbit.m4 serial 15
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -31,6 +31,8 @@ AC_DEFUN([gl_SIGNBIT],
         [case "$host_os" in
                    # Guess yes on glibc systems.
            *-gnu*) gl_cv_func_signbit="guessing yes" ;;
+                   # Guess yes on native Windows.
+           mingw*) gl_cv_func_signbit="guessing yes" ;;
                    # If we don't know, assume the worst.
            *)      gl_cv_func_signbit="guessing no" ;;
          esac
@@ -60,6 +62,13 @@ AC_DEFUN([gl_SIGNBIT],
         [case "$host_os" in
                    # Guess yes on glibc systems.
            *-gnu*) gl_cv_func_signbit_gcc="guessing yes" ;;
+                   # Guess yes on mingw, no on MSVC.
+           mingw*) if test -n "$GCC"; then
+                     gl_cv_func_signbit_gcc="guessing yes"
+                   else
+                     gl_cv_func_signbit_gcc="guessing no"
+                   fi
+                   ;;
                    # If we don't know, assume the worst.
            *)      gl_cv_func_signbit_gcc="guessing no" ;;
          esac
@@ -272,6 +281,7 @@ int main ()
         {
           /* More than one bit difference.  */
           fprintf (fp, "unknown");
+          fclose (fp);
           return 2;
         }
       if (x)
@@ -284,6 +294,7 @@ int main ()
     {
       /* No difference.  */
       fprintf (fp, "unknown");
+      fclose (fp);
       return 3;
     }
   /* Now m = plus.word[k] ^ ~minus.word[k].  */
@@ -292,6 +303,7 @@ int main ()
       /* Oh? The sign bit is set in the positive and cleared in the negative
          numbers?  */
       fprintf (fp, "unknown");
+      fclose (fp);
       return 4;
     }
   for (i = 0; ; i++)
diff --git a/gnulib-m4/size_max.m4 b/gnulib-m4/size_max.m4
index de69025d..05ad1b60 100644
--- a/gnulib-m4/size_max.m4
+++ b/gnulib-m4/size_max.m4
@@ -1,5 +1,5 @@
 # size_max.m4 serial 10
-dnl Copyright (C) 2003, 2005-2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2003, 2005-2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/sleep.m4 b/gnulib-m4/sleep.m4
new file mode 100644
index 00000000..e2d27be2
--- /dev/null
+++ b/gnulib-m4/sleep.m4
@@ -0,0 +1,64 @@
+# sleep.m4 serial 8
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_SLEEP],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+  dnl We expect to see the declaration of sleep() in a header file.
+  dnl Older versions of mingw have a sleep() function that is an alias to
+  dnl _sleep() in MSVCRT. It has a different signature than POSIX sleep():
+  dnl it takes the number of milliseconds as argument and returns void.
+  dnl mingw does not declare this function.
+  AC_CHECK_DECLS([sleep], , , [[#include <unistd.h>]])
+  AC_CHECK_FUNCS_ONCE([sleep])
+  if test $ac_cv_have_decl_sleep != yes; then
+    HAVE_SLEEP=0
+  else
+    dnl Cygwin 1.5.x has a bug where sleep can't exceed 49.7 days.
+    AC_CACHE_CHECK([for working sleep], [gl_cv_func_sleep_works],
+      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <errno.h>
+#include <unistd.h>
+#include <signal.h>
+static void
+handle_alarm (int sig)
+{
+  if (sig != SIGALRM)
+    _exit (2);
+}
+]], [[
+    /* Failure to compile this test due to missing alarm is okay,
+       since all such platforms (mingw) also lack sleep.  */
+    unsigned int pentecost = 50 * 24 * 60 * 60; /* 50 days.  */
+    unsigned int remaining;
+    signal (SIGALRM, handle_alarm);
+    alarm (1);
+    remaining = sleep (pentecost);
+    if (remaining > pentecost)
+      return 3;
+    if (remaining <= pentecost - 10)
+      return 4;
+    return 0;
+    ]])],
+      [gl_cv_func_sleep_works=yes], [gl_cv_func_sleep_works=no],
+      [case "$host_os" in
+                 # Guess yes on glibc systems.
+         *-gnu*) gl_cv_func_sleep_works="guessing yes" ;;
+                 # Guess no on native Windows.
+         mingw*) gl_cv_func_sleep_works="guessing no" ;;
+                 # If we don't know, assume the worst.
+         *)      gl_cv_func_sleep_works="guessing no" ;;
+       esac
+      ])])
+    case "$gl_cv_func_sleep_works" in
+      *yes) ;;
+      *)
+        REPLACE_SLEEP=1
+        ;;
+    esac
+  fi
+])
diff --git a/gnulib-m4/ssize_t.m4 b/gnulib-m4/ssize_t.m4
index 3e7b9e6e..66ba9d4e 100644
--- a/gnulib-m4/ssize_t.m4
+++ b/gnulib-m4/ssize_t.m4
@@ -1,5 +1,5 @@
 # ssize_t.m4 serial 5 (gettext-0.18.2)
-dnl Copyright (C) 2001-2003, 2006, 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2001-2003, 2006, 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/stdalign.m4 b/gnulib-m4/stdalign.m4
index 49980cd6..f091aa58 100644
--- a/gnulib-m4/stdalign.m4
+++ b/gnulib-m4/stdalign.m4
@@ -1,6 +1,6 @@
 # Check for stdalign.h that conforms to C11.
 
-dnl Copyright 2011-2016 Free Software Foundation, Inc.
+dnl Copyright 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -18,7 +18,7 @@ AC_DEFUN([gl_STDALIGN_H],
 
             /* Test that alignof yields a result consistent with offsetof.
                This catches GCC bug 52023
-               <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
+               <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52023>.  */
             #ifdef __cplusplus
                template <class t> struct alignof_helper { char a; t b; };
             # define ao(type) offsetof (alignof_helper<type>, b)
@@ -35,8 +35,8 @@ AC_DEFUN([gl_STDALIGN_H],
                  || (defined __APPLE__ && defined __MACH__ \
                      ? 4 < __GNUC__ + (1 <= __GNUC_MINOR__) \
                      : __GNUC__) \
-                 || __HP_cc || __HP_aCC || __IBMC__ || __IBMCPP__ \
-                 || __ICC || 0x5110 <= __SUNPRO_C \
+                 || (__ia64 && (61200 <= __HP_cc || 61200 <= __HP_aCC)) \
+                 || __ICC || 0x590 <= __SUNPRO_C || 0x0600 <= __xlC__ \
                  || 1300 <= _MSC_VER)
               struct alignas_test { char c; char alignas (8) alignas_8; };
               char test_alignas[offsetof (struct alignas_test, alignas_8) == 8
diff --git a/gnulib-m4/stdbool.m4 b/gnulib-m4/stdbool.m4
index 2a9b1db8..9e714d47 100644
--- a/gnulib-m4/stdbool.m4
+++ b/gnulib-m4/stdbool.m4
@@ -1,6 +1,6 @@
 # Check for stdbool.h that conforms to C99.
 
-dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -87,8 +87,8 @@ AC_DEFUN([AC_CHECK_HEADER_STDBOOL],
              char o[sizeof n == m * sizeof n[0] ? 1 : -1];
              char p[-1 - (Bool) 0 < 0 && -1 - (bool) 0 < 0 ? 1 : -1];
              /* Catch a bug in an HP-UX C compiler.  See
-                http://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
-                http://lists.gnu.org/archive/html/bug-coreutils/2005-11/msg00161.html
+                https://gcc.gnu.org/ml/gcc-patches/2003-12/msg02303.html
+                https://lists.gnu.org/r/bug-coreutils/2005-11/msg00161.html
               */
              Bool q = true;
              Bool *pq = &q;
diff --git a/gnulib-m4/stddef_h.m4 b/gnulib-m4/stddef_h.m4
index c045c65f..f45def10 100644
--- a/gnulib-m4/stddef_h.m4
+++ b/gnulib-m4/stddef_h.m4
@@ -1,6 +1,6 @@
 dnl A placeholder for <stddef.h>, for platforms that have issues.
 # stddef_h.m4 serial 5
-dnl Copyright (C) 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/stdint.m4 b/gnulib-m4/stdint.m4
index 05b6ab78..4bf3e474 100644
--- a/gnulib-m4/stdint.m4
+++ b/gnulib-m4/stdint.m4
@@ -1,5 +1,5 @@
-# stdint.m4 serial 48
-dnl Copyright (C) 2001-2016 Free Software Foundation, Inc.
+# stdint.m4 serial 51
+dnl Copyright (C) 2001-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -10,8 +10,10 @@ dnl Test whether <stdint.h> is supported or must be substituted.
 AC_DEFUN_ONCE([gl_STDINT_H],
 [
   AC_PREREQ([2.59])dnl
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
 
   AC_REQUIRE([gl_LIMITS_H])
+  AC_REQUIRE([gt_TYPE_WINT_T])
 
   dnl Check for long long int and unsigned long long int.
   AC_REQUIRE([AC_TYPE_LONG_LONG_INT])
@@ -287,8 +289,12 @@ static const char *macro_values[] =
 ]])],
               [gl_cv_header_working_stdint_h=yes],
               [],
-              [dnl When cross-compiling, assume it works.
-               gl_cv_header_working_stdint_h=yes
+              [case "$host_os" in
+                         # Guess yes on native Windows.
+                 mingw*) gl_cv_header_working_stdint_h="guessing yes" ;;
+                         # In general, assume it works.
+                 *)      gl_cv_header_working_stdint_h="guessing yes" ;;
+               esac
               ])
          ])
       ])
@@ -298,15 +304,16 @@ static const char *macro_values[] =
   HAVE_SYS_BITYPES_H=0
   HAVE_SYS_INTTYPES_H=0
   STDINT_H=stdint.h
-  if test "$gl_cv_header_working_stdint_h" = yes; then
-    HAVE_C99_STDINT_H=1
-    dnl Now see whether the system <stdint.h> works without
-    dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
-    AC_CACHE_CHECK([whether stdint.h predates C++11],
-      [gl_cv_header_stdint_predates_cxx11_h],
-      [gl_cv_header_stdint_predates_cxx11_h=yes
-       AC_COMPILE_IFELSE([
-         AC_LANG_PROGRAM([[
+  case "$gl_cv_header_working_stdint_h" in
+    *yes)
+      HAVE_C99_STDINT_H=1
+      dnl Now see whether the system <stdint.h> works without
+      dnl __STDC_CONSTANT_MACROS/__STDC_LIMIT_MACROS defined.
+      AC_CACHE_CHECK([whether stdint.h predates C++11],
+        [gl_cv_header_stdint_predates_cxx11_h],
+        [gl_cv_header_stdint_predates_cxx11_h=yes
+         AC_COMPILE_IFELSE([
+           AC_LANG_PROGRAM([[
 #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1 /* work if build isn't clean */
 #include <stdint.h>
 ]
@@ -314,47 +321,49 @@ gl_STDINT_INCLUDES
 [
 intmax_t im = INTMAX_MAX;
 int32_t i32 = INT32_C (0x7fffffff);
-         ]])],
-         [gl_cv_header_stdint_predates_cxx11_h=no])])
+           ]])],
+           [gl_cv_header_stdint_predates_cxx11_h=no])])
 
-    if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then
-      AC_DEFINE([__STDC_CONSTANT_MACROS], [1],
-                [Define to 1 if the system <stdint.h> predates C++11.])
-      AC_DEFINE([__STDC_LIMIT_MACROS], [1],
-                [Define to 1 if the system <stdint.h> predates C++11.])
-    fi
-    AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
-      [gl_cv_header_stdint_width],
-      [gl_cv_header_stdint_width=no
-       AC_COMPILE_IFELSE(
-         [AC_LANG_PROGRAM([[
-            /* Work if build is not clean.  */
-            #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
-            #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
-             #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
-            #endif
-            #include <stdint.h>
-            ]gl_STDINT_INCLUDES[
-            int iw = UINTMAX_WIDTH;
-            ]])],
-         [gl_cv_header_stdint_width=yes])])
-    if test "$gl_cv_header_stdint_width" = yes; then
-      STDINT_H=
-    fi
-  else
-    dnl Check for <sys/inttypes.h>, and for
-    dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
-    AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
-    if test $ac_cv_header_sys_inttypes_h = yes; then
-      HAVE_SYS_INTTYPES_H=1
-    fi
-    if test $ac_cv_header_sys_bitypes_h = yes; then
-      HAVE_SYS_BITYPES_H=1
-    fi
-    gl_STDINT_TYPE_PROPERTIES
-  fi
+      if test "$gl_cv_header_stdint_predates_cxx11_h" = yes; then
+        AC_DEFINE([__STDC_CONSTANT_MACROS], [1],
+                  [Define to 1 if the system <stdint.h> predates C++11.])
+        AC_DEFINE([__STDC_LIMIT_MACROS], [1],
+                  [Define to 1 if the system <stdint.h> predates C++11.])
+      fi
+      AC_CACHE_CHECK([whether stdint.h has UINTMAX_WIDTH etc.],
+        [gl_cv_header_stdint_width],
+        [gl_cv_header_stdint_width=no
+         AC_COMPILE_IFELSE(
+           [AC_LANG_PROGRAM([[
+              /* Work if build is not clean.  */
+              #define _GL_JUST_INCLUDE_SYSTEM_STDINT_H 1
+              #ifndef __STDC_WANT_IEC_60559_BFP_EXT__
+               #define __STDC_WANT_IEC_60559_BFP_EXT__ 1
+              #endif
+              #include <stdint.h>
+              ]gl_STDINT_INCLUDES[
+              int iw = UINTMAX_WIDTH;
+              ]])],
+           [gl_cv_header_stdint_width=yes])])
+      if test "$gl_cv_header_stdint_width" = yes; then
+        STDINT_H=
+      fi
+      ;;
+    *)
+      dnl Check for <sys/inttypes.h>, and for
+      dnl <sys/bitypes.h> (used in Linux libc4 >= 4.6.7 and libc5).
+      AC_CHECK_HEADERS([sys/inttypes.h sys/bitypes.h])
+      if test $ac_cv_header_sys_inttypes_h = yes; then
+        HAVE_SYS_INTTYPES_H=1
+      fi
+      if test $ac_cv_header_sys_bitypes_h = yes; then
+        HAVE_SYS_BITYPES_H=1
+      fi
+      gl_STDINT_TYPE_PROPERTIES
+      ;;
+  esac
 
-  # The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
+  dnl The substitute stdint.h needs the substitute limit.h's _GL_INTEGER_WIDTH.
   LIMITS_H=limits.h
   AM_CONDITIONAL([GL_GENERATE_LIMITS_H], [test -n "$LIMITS_H"])
 
@@ -528,7 +537,7 @@ AC_DEFUN([gl_STDINT_TYPE_PROPERTIES],
   dnl requirement that wint_t is "unchanged by default argument promotions".
   dnl In this case gnulib's <wchar.h> and <wctype.h> override wint_t.
   dnl Set the variable BITSIZEOF_WINT_T accordingly.
-  if test $BITSIZEOF_WINT_T -lt 32; then
+  if test $GNULIB_OVERRIDES_WINT_T = 1; then
     BITSIZEOF_WINT_T=32
   fi
 ])
diff --git a/gnulib-m4/stdint_h.m4 b/gnulib-m4/stdint_h.m4
index f823b94c..786eaa3c 100644
--- a/gnulib-m4/stdint_h.m4
+++ b/gnulib-m4/stdint_h.m4
@@ -1,5 +1,5 @@
 # stdint_h.m4 serial 9
-dnl Copyright (C) 1997-2004, 2006, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 1997-2004, 2006, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/stdio_h.m4 b/gnulib-m4/stdio_h.m4
index eaa25a01..9ffbb852 100644
--- a/gnulib-m4/stdio_h.m4
+++ b/gnulib-m4/stdio_h.m4
@@ -1,5 +1,5 @@
 # stdio_h.m4 serial 48
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/stdlib_h.m4 b/gnulib-m4/stdlib_h.m4
index 39990681..35373463 100644
--- a/gnulib-m4/stdlib_h.m4
+++ b/gnulib-m4/stdlib_h.m4
@@ -1,5 +1,5 @@
-# stdlib_h.m4 serial 43
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# stdlib_h.m4 serial 44
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -21,9 +21,9 @@ AC_DEFUN([gl_STDLIB_H],
 #endif
     ]], [_Exit atoll canonicalize_file_name getloadavg getsubopt grantpt
     initstate initstate_r mkdtemp mkostemp mkostemps mkstemp mkstemps
-    posix_openpt ptsname ptsname_r qsort_r random random_r realpath rpmatch
-    secure_getenv setenv setstate setstate_r srandom srandom_r
-    strtod strtoll strtoull unlockpt unsetenv])
+    posix_openpt ptsname ptsname_r qsort_r random random_r reallocarray
+    realpath rpmatch secure_getenv setenv setstate setstate_r srandom
+    srandom_r strtod strtoll strtoull unlockpt unsetenv])
 ])
 
 AC_DEFUN([gl_STDLIB_MODULE_INDICATOR],
@@ -58,6 +58,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   GNULIB_QSORT_R=0;       AC_SUBST([GNULIB_QSORT_R])
   GNULIB_RANDOM=0;        AC_SUBST([GNULIB_RANDOM])
   GNULIB_RANDOM_R=0;      AC_SUBST([GNULIB_RANDOM_R])
+  GNULIB_REALLOCARRAY=0;  AC_SUBST([GNULIB_REALLOCARRAY])
   GNULIB_REALLOC_POSIX=0; AC_SUBST([GNULIB_REALLOC_POSIX])
   GNULIB_REALPATH=0;      AC_SUBST([GNULIB_REALPATH])
   GNULIB_RPMATCH=0;       AC_SUBST([GNULIB_RPMATCH])
@@ -77,6 +78,7 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_DECL_GETLOADAVG=1;    AC_SUBST([HAVE_DECL_GETLOADAVG])
   HAVE_GETSUBOPT=1;          AC_SUBST([HAVE_GETSUBOPT])
   HAVE_GRANTPT=1;            AC_SUBST([HAVE_GRANTPT])
+  HAVE_DECL_INITSTATE=1;     AC_SUBST([HAVE_DECL_INITSTATE])
   HAVE_MKDTEMP=1;            AC_SUBST([HAVE_MKDTEMP])
   HAVE_MKOSTEMP=1;           AC_SUBST([HAVE_MKOSTEMP])
   HAVE_MKOSTEMPS=1;          AC_SUBST([HAVE_MKOSTEMPS])
@@ -89,11 +91,13 @@ AC_DEFUN([gl_STDLIB_H_DEFAULTS],
   HAVE_RANDOM=1;             AC_SUBST([HAVE_RANDOM])
   HAVE_RANDOM_H=1;           AC_SUBST([HAVE_RANDOM_H])
   HAVE_RANDOM_R=1;           AC_SUBST([HAVE_RANDOM_R])
+  HAVE_REALLOCARRAY=1;       AC_SUBST([HAVE_REALLOCARRAY])
   HAVE_REALPATH=1;           AC_SUBST([HAVE_REALPATH])
   HAVE_RPMATCH=1;            AC_SUBST([HAVE_RPMATCH])
   HAVE_SECURE_GETENV=1;      AC_SUBST([HAVE_SECURE_GETENV])
   HAVE_SETENV=1;             AC_SUBST([HAVE_SETENV])
   HAVE_DECL_SETENV=1;        AC_SUBST([HAVE_DECL_SETENV])
+  HAVE_DECL_SETSTATE=1;      AC_SUBST([HAVE_DECL_SETSTATE])
   HAVE_STRTOD=1;             AC_SUBST([HAVE_STRTOD])
   HAVE_STRTOLL=1;            AC_SUBST([HAVE_STRTOLL])
   HAVE_STRTOULL=1;           AC_SUBST([HAVE_STRTOULL])
diff --git a/gnulib-m4/strerror.m4 b/gnulib-m4/strerror.m4
index e286594b..279efd60 100644
--- a/gnulib-m4/strerror.m4
+++ b/gnulib-m4/strerror.m4
@@ -1,5 +1,5 @@
-# strerror.m4 serial 17
-dnl Copyright (C) 2002, 2007-2016 Free Software Foundation, Inc.
+# strerror.m4 serial 18
+dnl Copyright (C) 2002, 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -80,6 +80,8 @@ AC_DEFUN([gl_FUNC_STRERROR_0],
       [case "$host_os" in
                  # Guess yes on glibc systems.
          *-gnu*) gl_cv_func_strerror_0_works="guessing yes" ;;
+                 # Guess yes on native Windows.
+         mingw*) gl_cv_func_strerror_0_works="guessing yes" ;;
                  # If we don't know, assume the worst.
          *)      gl_cv_func_strerror_0_works="guessing no" ;;
        esac
diff --git a/gnulib-m4/string_h.m4 b/gnulib-m4/string_h.m4
index 0c5ec6f9..8c42cf1b 100644
--- a/gnulib-m4/string_h.m4
+++ b/gnulib-m4/string_h.m4
@@ -1,11 +1,11 @@
 # Configure a GNU-like replacement for <string.h>.
 
-# Copyright (C) 2007-2016 Free Software Foundation, Inc.
+# Copyright (C) 2007-2017 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
-# serial 21
+# serial 22
 
 # Written by Paul Eggert.
 
@@ -43,6 +43,7 @@ AC_DEFUN([gl_STRING_MODULE_INDICATOR],
 
 AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
 [
+  GNULIB_EXPLICIT_BZERO=0; AC_SUBST([GNULIB_EXPLICIT_BZERO])
   GNULIB_FFSL=0;        AC_SUBST([GNULIB_FFSL])
   GNULIB_FFSLL=0;       AC_SUBST([GNULIB_FFSLL])
   GNULIB_MEMCHR=0;      AC_SUBST([GNULIB_MEMCHR])
@@ -82,6 +83,7 @@ AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
   GNULIB_STRVERSCMP=0;  AC_SUBST([GNULIB_STRVERSCMP])
   HAVE_MBSLEN=0;        AC_SUBST([HAVE_MBSLEN])
   dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_EXPLICIT_BZERO=1;        AC_SUBST([HAVE_EXPLICIT_BZERO])
   HAVE_FFSL=1;                  AC_SUBST([HAVE_FFSL])
   HAVE_FFSLL=1;                 AC_SUBST([HAVE_FFSLL])
   HAVE_MEMCHR=1;                AC_SUBST([HAVE_MEMCHR])
@@ -105,16 +107,16 @@ AC_DEFUN([gl_HEADER_STRING_H_DEFAULTS],
   REPLACE_MEMCHR=0;             AC_SUBST([REPLACE_MEMCHR])
   REPLACE_MEMMEM=0;             AC_SUBST([REPLACE_MEMMEM])
   REPLACE_STPNCPY=0;            AC_SUBST([REPLACE_STPNCPY])
+  REPLACE_STRCHRNUL=0;          AC_SUBST([REPLACE_STRCHRNUL])
   REPLACE_STRDUP=0;             AC_SUBST([REPLACE_STRDUP])
+  REPLACE_STRNCAT=0;            AC_SUBST([REPLACE_STRNCAT])
+  REPLACE_STRNDUP=0;            AC_SUBST([REPLACE_STRNDUP])
+  REPLACE_STRNLEN=0;            AC_SUBST([REPLACE_STRNLEN])
   REPLACE_STRSTR=0;             AC_SUBST([REPLACE_STRSTR])
   REPLACE_STRCASESTR=0;         AC_SUBST([REPLACE_STRCASESTR])
-  REPLACE_STRCHRNUL=0;          AC_SUBST([REPLACE_STRCHRNUL])
+  REPLACE_STRTOK_R=0;           AC_SUBST([REPLACE_STRTOK_R])
   REPLACE_STRERROR=0;           AC_SUBST([REPLACE_STRERROR])
   REPLACE_STRERROR_R=0;         AC_SUBST([REPLACE_STRERROR_R])
-  REPLACE_STRNCAT=0;            AC_SUBST([REPLACE_STRNCAT])
-  REPLACE_STRNDUP=0;            AC_SUBST([REPLACE_STRNDUP])
-  REPLACE_STRNLEN=0;            AC_SUBST([REPLACE_STRNLEN])
   REPLACE_STRSIGNAL=0;          AC_SUBST([REPLACE_STRSIGNAL])
-  REPLACE_STRTOK_R=0;           AC_SUBST([REPLACE_STRTOK_R])
   UNDEFINE_STRTOK_R=0;          AC_SUBST([UNDEFINE_STRTOK_R])
 ])
diff --git a/gnulib-m4/strncat.m4 b/gnulib-m4/strncat.m4
index cda109cb..92ee5724 100644
--- a/gnulib-m4/strncat.m4
+++ b/gnulib-m4/strncat.m4
@@ -1,5 +1,5 @@
-# strncat.m4 serial 2
-dnl Copyright (C) 2002-2004, 2009-2016 Free Software Foundation, Inc.
+# strncat.m4 serial 4
+dnl Copyright (C) 2002-2004, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -15,7 +15,7 @@ AC_DEFUN_ONCE([gl_FUNC_STRNCAT],
   AC_CHECK_HEADERS_ONCE([sys/mman.h])
   AC_CHECK_FUNCS_ONCE([mprotect])
 
-  dnl Detect bug in Solaris 8..10 on SPARC:
+  dnl Detect bug in Solaris 8..10 on SPARC and Solaris 11.0 on x86:
   dnl strncat should not dereference more than n bytes, but always dereferences
   dnl n+1 bytes if the first n bytes don't contain a NUL byte.
   dnl Assume that strncat works on platforms that lack mprotect.
@@ -84,9 +84,11 @@ AC_DEFUN_ONCE([gl_FUNC_STRNCAT],
        [
         case "$host_os" in
                     # Guess no on Solaris.
-          solaris*) gl_cv_func_strncat_works="guessing no";;
+          solaris*) gl_cv_func_strncat_works="guessing no" ;;
+                    # Guess yes on native Windows.
+          mingw*)   gl_cv_func_strncat_works="guessing yes" ;;
                     # Guess yes otherwise.
-          *)        gl_cv_func_strncat_works="guessing yes";;
+          *)        gl_cv_func_strncat_works="guessing yes" ;;
         esac
        ])
     ])
diff --git a/gnulib-m4/strstr.m4 b/gnulib-m4/strstr.m4
index bfe4c859..f48a6cd8 100644
--- a/gnulib-m4/strstr.m4
+++ b/gnulib-m4/strstr.m4
@@ -1,5 +1,5 @@
-# strstr.m4 serial 17
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+# strstr.m4 serial 19
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -9,10 +9,10 @@ AC_DEFUN([gl_FUNC_STRSTR_SIMPLE],
 [
   AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_REQUIRE([gl_FUNC_MEMCHR])
-  if test "$gl_cv_func_memchr_works" != yes; then
+  if test $HAVE_MEMCHR = 0 || test $REPLACE_MEMCHR = 1; then
     REPLACE_STRSTR=1
   else
-    dnl Detect http://sourceware.org/bugzilla/show_bug.cgi?id=12092.
+    dnl Detect https://sourceware.org/bugzilla/show_bug.cgi?id=12092.
     AC_CACHE_CHECK([whether strstr works],
       [gl_cv_func_strstr_works_always],
       [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
@@ -99,6 +99,9 @@ static void quit (int sig) { _exit (sig + 128); }
         if (!strstr (haystack, needle))
           result |= 1;
       }
+    /* Free allocated memory, in case some sanitizer is watching.  */
+    free (haystack);
+    free (needle);
     return result;
     ]])],
         [gl_cv_func_strstr_linear=yes], [gl_cv_func_strstr_linear=no],
diff --git a/gnulib-m4/sys_socket_h.m4 b/gnulib-m4/sys_socket_h.m4
index ae500c76..3ecbe7c0 100644
--- a/gnulib-m4/sys_socket_h.m4
+++ b/gnulib-m4/sys_socket_h.m4
@@ -1,5 +1,5 @@
 # sys_socket_h.m4 serial 23
-dnl Copyright (C) 2005-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/sys_types_h.m4 b/gnulib-m4/sys_types_h.m4
index 159b005b..75097713 100644
--- a/gnulib-m4/sys_types_h.m4
+++ b/gnulib-m4/sys_types_h.m4
@@ -1,11 +1,14 @@
-# sys_types_h.m4 serial 6
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+# sys_types_h.m4 serial 9
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN_ONCE([gl_SYS_TYPES_H],
 [
+  dnl Use sane struct stat types in OpenVMS 8.2 and later.
+  AC_DEFINE([_USE_STD_STAT], 1, [For standard stat data types on VMS.])
+
   AC_REQUIRE([gl_SYS_TYPES_H_DEFAULTS])
   gl_NEXT_HEADERS([sys/types.h])
 
@@ -17,6 +20,14 @@ AC_DEFUN_ONCE([gl_SYS_TYPES_H],
 
   dnl Whether to override the 'off_t' type.
   AC_REQUIRE([gl_TYPE_OFF_T])
+
+  dnl Whether to override the 'dev_t' and 'ino_t' types.
+  m4_ifdef([gl_WINDOWS_STAT_INODES], [
+    AC_REQUIRE([gl_WINDOWS_STAT_INODES])
+  ], [
+    WINDOWS_STAT_INODES=0
+  ])
+  AC_SUBST([WINDOWS_STAT_INODES])
 ])
 
 AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
@@ -24,12 +35,12 @@ AC_DEFUN([gl_SYS_TYPES_H_DEFAULTS],
 ])
 
 # This works around a buggy version in autoconf <= 2.69.
-# See <https://lists.gnu.org/archive/html/autoconf/2016-08/msg00014.html>
+# See <https://lists.gnu.org/r/autoconf/2016-08/msg00014.html>
 
 m4_version_prereq([2.70], [], [
 
 # This is taken from the following Autoconf patch:
-# http://git.sv.gnu.org/cgit/autoconf.git/commit/?id=e17a30e98
+# https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=e17a30e987d7ee695fb4294a82d987ec3dc9b974
 
 m4_undefine([AC_HEADER_MAJOR])
 AC_DEFUN([AC_HEADER_MAJOR],
diff --git a/gnulib-m4/thread.m4 b/gnulib-m4/thread.m4
index 7a9d7768..62bbcee9 100644
--- a/gnulib-m4/thread.m4
+++ b/gnulib-m4/thread.m4
@@ -1,5 +1,5 @@
 # thread.m4 serial 3
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/threadlib.m4 b/gnulib-m4/threadlib.m4
index b43534ea..9aa18e25 100644
--- a/gnulib-m4/threadlib.m4
+++ b/gnulib-m4/threadlib.m4
@@ -1,5 +1,5 @@
-# threadlib.m4 serial 11 (gettext-0.18.2)
-dnl Copyright (C) 2005-2016 Free Software Foundation, Inc.
+# threadlib.m4 serial 13
+dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -66,7 +66,7 @@ changequote(,)dnl
          dnl child process gets an endless segmentation fault inside execvp().
          dnl Disable multithreading by default on Cygwin 1.5.x, because it has
          dnl bugs that lead to endless loops or crashes. See
-         dnl <http://cygwin.com/ml/cygwin/2009-08/msg00283.html>.
+         dnl <https://cygwin.com/ml/cygwin/2009-08/msg00283.html>.
          osf*) gl_use_threads=no ;;
          cygwin*)
                case `uname -r` in
@@ -148,6 +148,10 @@ int main ()
               [gl_cv_have_weak="guessing no"])
            ])
        fi
+       dnl But when linking statically, weak symbols don't work.
+       case " $LDFLAGS " in
+         *" -static "*) gl_cv_have_weak=no ;;
+       esac
       ])
     if test "$gl_use_threads" = yes || test "$gl_use_threads" = posix; then
       # On OSF/1, the compiler needs the flag -pthread or -D_REENTRANT so that
@@ -165,7 +169,7 @@ int main ()
         #
         # If -pthread works, prefer it to -lpthread, since Ubuntu 14.04
         # needs -pthread for some reason.  See:
-        # http://lists.gnu.org/archive/html/bug-gnulib/2014-09/msg00023.html
+        # https://lists.gnu.org/r/bug-gnulib/2014-09/msg00023.html
         save_LIBS=$LIBS
         for gl_pthread in '' '-pthread'; do
           LIBS="$LIBS $gl_pthread"
@@ -195,8 +199,10 @@ int main ()
              # Therefore pthread_in_use() needs to actually try to create a
              # thread: pthread_create from libc will fail, whereas
              # pthread_create will actually create a thread.
+             # On Solaris 10 or newer, this test is no longer needed, because
+             # libc contains the fully functional pthread functions.
              case "$host_os" in
-               solaris* | hpux*)
+               solaris | solaris2.[1-9] | solaris2.[1-9].* | hpux*)
                  AC_DEFINE([PTHREAD_IN_USE_DETECTION_HARD], [1],
                    [Define if the pthread_in_use() detection is hard.])
              esac
diff --git a/gnulib-m4/time_h.m4 b/gnulib-m4/time_h.m4
new file mode 100644
index 00000000..28e22092
--- /dev/null
+++ b/gnulib-m4/time_h.m4
@@ -0,0 +1,144 @@
+# Configure a more-standard replacement for <time.h>.
+
+# Copyright (C) 2000-2001, 2003-2007, 2009-2017 Free Software Foundation, Inc.
+
+# serial 11
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# Written by Paul Eggert and Jim Meyering.
+
+AC_DEFUN([gl_HEADER_TIME_H],
+[
+  dnl Use AC_REQUIRE here, so that the default behavior below is expanded
+  dnl once only, before all statements that occur in other macros.
+  AC_REQUIRE([gl_HEADER_TIME_H_BODY])
+])
+
+AC_DEFUN([gl_HEADER_TIME_H_BODY],
+[
+  AC_REQUIRE([AC_C_RESTRICT])
+  AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
+  gl_NEXT_HEADERS([time.h])
+  AC_REQUIRE([gl_CHECK_TYPE_STRUCT_TIMESPEC])
+])
+
+dnl Check whether 'struct timespec' is declared
+dnl in time.h, sys/time.h, pthread.h, or unistd.h.
+
+AC_DEFUN([gl_CHECK_TYPE_STRUCT_TIMESPEC],
+[
+  AC_CHECK_HEADERS_ONCE([sys/time.h])
+  AC_CACHE_CHECK([for struct timespec in <time.h>],
+    [gl_cv_sys_struct_timespec_in_time_h],
+    [AC_COMPILE_IFELSE(
+       [AC_LANG_PROGRAM(
+          [[#include <time.h>
+          ]],
+          [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+       [gl_cv_sys_struct_timespec_in_time_h=yes],
+       [gl_cv_sys_struct_timespec_in_time_h=no])])
+
+  TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=0
+  PTHREAD_H_DEFINES_STRUCT_TIMESPEC=0
+  UNISTD_H_DEFINES_STRUCT_TIMESPEC=0
+  if test $gl_cv_sys_struct_timespec_in_time_h = yes; then
+    TIME_H_DEFINES_STRUCT_TIMESPEC=1
+  else
+    AC_CACHE_CHECK([for struct timespec in <sys/time.h>],
+      [gl_cv_sys_struct_timespec_in_sys_time_h],
+      [AC_COMPILE_IFELSE(
+         [AC_LANG_PROGRAM(
+            [[#include <sys/time.h>
+            ]],
+            [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+         [gl_cv_sys_struct_timespec_in_sys_time_h=yes],
+         [gl_cv_sys_struct_timespec_in_sys_time_h=no])])
+    if test $gl_cv_sys_struct_timespec_in_sys_time_h = yes; then
+      SYS_TIME_H_DEFINES_STRUCT_TIMESPEC=1
+    else
+      AC_CACHE_CHECK([for struct timespec in <pthread.h>],
+        [gl_cv_sys_struct_timespec_in_pthread_h],
+        [AC_COMPILE_IFELSE(
+           [AC_LANG_PROGRAM(
+              [[#include <pthread.h>
+              ]],
+              [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+           [gl_cv_sys_struct_timespec_in_pthread_h=yes],
+           [gl_cv_sys_struct_timespec_in_pthread_h=no])])
+      if test $gl_cv_sys_struct_timespec_in_pthread_h = yes; then
+        PTHREAD_H_DEFINES_STRUCT_TIMESPEC=1
+      else
+        AC_CACHE_CHECK([for struct timespec in <unistd.h>],
+          [gl_cv_sys_struct_timespec_in_unistd_h],
+          [AC_COMPILE_IFELSE(
+             [AC_LANG_PROGRAM(
+                [[#include <unistd.h>
+                ]],
+                [[static struct timespec x; x.tv_sec = x.tv_nsec;]])],
+             [gl_cv_sys_struct_timespec_in_unistd_h=yes],
+             [gl_cv_sys_struct_timespec_in_unistd_h=no])])
+        if test $gl_cv_sys_struct_timespec_in_unistd_h = yes; then
+          UNISTD_H_DEFINES_STRUCT_TIMESPEC=1
+        fi
+      fi
+    fi
+  fi
+  AC_SUBST([TIME_H_DEFINES_STRUCT_TIMESPEC])
+  AC_SUBST([SYS_TIME_H_DEFINES_STRUCT_TIMESPEC])
+  AC_SUBST([PTHREAD_H_DEFINES_STRUCT_TIMESPEC])
+  AC_SUBST([UNISTD_H_DEFINES_STRUCT_TIMESPEC])
+])
+
+AC_DEFUN([gl_TIME_MODULE_INDICATOR],
+[
+  dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
+  AC_REQUIRE([gl_HEADER_TIME_H_DEFAULTS])
+  gl_MODULE_INDICATOR_SET_VARIABLE([$1])
+  dnl Define it also as a C macro, for the benefit of the unit tests.
+  gl_MODULE_INDICATOR_FOR_TESTS([$1])
+])
+
+AC_DEFUN([gl_HEADER_TIME_H_DEFAULTS],
+[
+  GNULIB_CTIME=0;                        AC_SUBST([GNULIB_CTIME])
+  GNULIB_MKTIME=0;                       AC_SUBST([GNULIB_MKTIME])
+  GNULIB_LOCALTIME=0;                    AC_SUBST([GNULIB_LOCALTIME])
+  GNULIB_NANOSLEEP=0;                    AC_SUBST([GNULIB_NANOSLEEP])
+  GNULIB_STRFTIME=0;                     AC_SUBST([GNULIB_STRFTIME])
+  GNULIB_STRPTIME=0;                     AC_SUBST([GNULIB_STRPTIME])
+  GNULIB_TIMEGM=0;                       AC_SUBST([GNULIB_TIMEGM])
+  GNULIB_TIME_R=0;                       AC_SUBST([GNULIB_TIME_R])
+  GNULIB_TIME_RZ=0;                      AC_SUBST([GNULIB_TIME_RZ])
+  GNULIB_TZSET=0;                        AC_SUBST([GNULIB_TZSET])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_DECL_LOCALTIME_R=1;               AC_SUBST([HAVE_DECL_LOCALTIME_R])
+  HAVE_NANOSLEEP=1;                      AC_SUBST([HAVE_NANOSLEEP])
+  HAVE_STRPTIME=1;                       AC_SUBST([HAVE_STRPTIME])
+  HAVE_TIMEGM=1;                         AC_SUBST([HAVE_TIMEGM])
+  HAVE_TZSET=1;                          AC_SUBST([HAVE_TZSET])
+  dnl Even GNU libc does not have timezone_t yet.
+  HAVE_TIMEZONE_T=0;                     AC_SUBST([HAVE_TIMEZONE_T])
+  dnl If another module says to replace or to not replace, do that.
+  dnl Otherwise, replace only if someone compiles with -DGNULIB_PORTCHECK;
+  dnl this lets maintainers check for portability.
+  REPLACE_CTIME=GNULIB_PORTCHECK;        AC_SUBST([REPLACE_CTIME])
+  REPLACE_LOCALTIME_R=GNULIB_PORTCHECK;  AC_SUBST([REPLACE_LOCALTIME_R])
+  REPLACE_MKTIME=GNULIB_PORTCHECK;       AC_SUBST([REPLACE_MKTIME])
+  REPLACE_NANOSLEEP=GNULIB_PORTCHECK;    AC_SUBST([REPLACE_NANOSLEEP])
+  REPLACE_STRFTIME=GNULIB_PORTCHECK;     AC_SUBST([REPLACE_STRFTIME])
+  REPLACE_TIMEGM=GNULIB_PORTCHECK;       AC_SUBST([REPLACE_TIMEGM])
+  REPLACE_TZSET=GNULIB_PORTCHECK;        AC_SUBST([REPLACE_TZSET])
+
+  dnl Hack so that the time module doesn't depend on the sys_time module.
+  dnl First, default GNULIB_GETTIMEOFDAY to 0 if sys_time is absent.
+  : ${GNULIB_GETTIMEOFDAY=0};            AC_SUBST([GNULIB_GETTIMEOFDAY])
+  dnl Second, it's OK to not use GNULIB_PORTCHECK for REPLACE_GMTIME
+  dnl and REPLACE_LOCALTIME, as portability to Solaris 2.6 and earlier
+  dnl is no longer a big deal.
+  REPLACE_GMTIME=0;                      AC_SUBST([REPLACE_GMTIME])
+  REPLACE_LOCALTIME=0;                   AC_SUBST([REPLACE_LOCALTIME])
+])
diff --git a/gnulib-m4/unistd_h.m4 b/gnulib-m4/unistd_h.m4
index 544dadb4..60e7ea4d 100644
--- a/gnulib-m4/unistd_h.m4
+++ b/gnulib-m4/unistd_h.m4
@@ -1,5 +1,5 @@
-# unistd_h.m4 serial 68
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+# unistd_h.m4 serial 71
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -46,8 +46,8 @@ AC_DEFUN([gl_UNISTD_H],
     gethostname getlogin getlogin_r getpagesize
     getusershell setusershell endusershell
     group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
-    readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r
-    unlink unlinkat usleep])
+    readlink readlinkat rmdir sethostname sleep symlink symlinkat
+    truncate ttyname_r unlink unlinkat usleep])
 ])
 
 AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
@@ -102,6 +102,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   GNULIB_SLEEP=0;                AC_SUBST([GNULIB_SLEEP])
   GNULIB_SYMLINK=0;              AC_SUBST([GNULIB_SYMLINK])
   GNULIB_SYMLINKAT=0;            AC_SUBST([GNULIB_SYMLINKAT])
+  GNULIB_TRUNCATE=0;             AC_SUBST([GNULIB_TRUNCATE])
   GNULIB_TTYNAME_R=0;            AC_SUBST([GNULIB_TTYNAME_R])
   GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
   GNULIB_UNISTD_H_SIGPIPE=0;     AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
@@ -139,12 +140,14 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   HAVE_SLEEP=1;           AC_SUBST([HAVE_SLEEP])
   HAVE_SYMLINK=1;         AC_SUBST([HAVE_SYMLINK])
   HAVE_SYMLINKAT=1;       AC_SUBST([HAVE_SYMLINKAT])
+  HAVE_TRUNCATE=1;        AC_SUBST([HAVE_TRUNCATE])
   HAVE_UNLINKAT=1;        AC_SUBST([HAVE_UNLINKAT])
   HAVE_USLEEP=1;          AC_SUBST([HAVE_USLEEP])
   HAVE_DECL_ENVIRON=1;    AC_SUBST([HAVE_DECL_ENVIRON])
   HAVE_DECL_FCHDIR=1;     AC_SUBST([HAVE_DECL_FCHDIR])
   HAVE_DECL_FDATASYNC=1;  AC_SUBST([HAVE_DECL_FDATASYNC])
   HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME])
+  HAVE_DECL_GETLOGIN=1;   AC_SUBST([HAVE_DECL_GETLOGIN])
   HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R])
   HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE])
   HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL])
@@ -156,6 +159,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   REPLACE_CLOSE=0;        AC_SUBST([REPLACE_CLOSE])
   REPLACE_DUP=0;          AC_SUBST([REPLACE_DUP])
   REPLACE_DUP2=0;         AC_SUBST([REPLACE_DUP2])
+  REPLACE_FACCESSAT=0;    AC_SUBST([REPLACE_FACCESSAT])
   REPLACE_FCHOWNAT=0;     AC_SUBST([REPLACE_FCHOWNAT])
   REPLACE_FTRUNCATE=0;    AC_SUBST([REPLACE_FTRUNCATE])
   REPLACE_GETCWD=0;       AC_SUBST([REPLACE_GETCWD])
@@ -178,6 +182,7 @@ AC_DEFUN([gl_UNISTD_H_DEFAULTS],
   REPLACE_SLEEP=0;        AC_SUBST([REPLACE_SLEEP])
   REPLACE_SYMLINK=0;      AC_SUBST([REPLACE_SYMLINK])
   REPLACE_SYMLINKAT=0;    AC_SUBST([REPLACE_SYMLINKAT])
+  REPLACE_TRUNCATE=0;     AC_SUBST([REPLACE_TRUNCATE])
   REPLACE_TTYNAME_R=0;    AC_SUBST([REPLACE_TTYNAME_R])
   REPLACE_UNLINK=0;       AC_SUBST([REPLACE_UNLINK])
   REPLACE_UNLINKAT=0;     AC_SUBST([REPLACE_UNLINKAT])
diff --git a/gnulib-m4/usleep.m4 b/gnulib-m4/usleep.m4
new file mode 100644
index 00000000..e69ed85b
--- /dev/null
+++ b/gnulib-m4/usleep.m4
@@ -0,0 +1,47 @@
+# usleep.m4 serial 4
+dnl Copyright (C) 2009-2017 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+dnl This macro intentionally does not check for select or nanosleep;
+dnl both of those modules can require external libraries.
+AC_DEFUN([gl_FUNC_USLEEP],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  dnl usleep was required in POSIX 2001, but dropped as obsolete in
+  dnl POSIX 2008; therefore, it is not always exposed in headers.
+  AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
+  AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
+  AC_CHECK_FUNCS_ONCE([usleep])
+  AC_CHECK_TYPE([useconds_t], [],
+    [AC_DEFINE([useconds_t], [unsigned int], [Define to an unsigned 32-bit
+      type if <sys/types.h> lacks this type.])])
+  if test $ac_cv_func_usleep = no; then
+    HAVE_USLEEP=0
+  else
+    dnl POSIX allows implementations to reject arguments larger than
+    dnl 999999, but GNU guarantees it will work.
+    AC_CACHE_CHECK([whether usleep allows large arguments],
+      [gl_cv_func_usleep_works],
+      [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <unistd.h>
+]], [[return !!usleep (1000000);]])],
+        [gl_cv_func_usleep_works=yes], [gl_cv_func_usleep_works=no],
+        [case "$host_os" in
+                   # Guess yes on glibc systems.
+           *-gnu*) gl_cv_func_usleep_works="guessing yes" ;;
+                   # Guess no on native Windows.
+           mingw*) gl_cv_func_usleep_works="guessing no" ;;
+                   # If we don't know, assume the worst.
+           *)      gl_cv_func_usleep_works="guessing no" ;;
+         esac
+        ])])
+    case "$gl_cv_func_usleep_works" in
+      *yes) ;;
+      *)
+        REPLACE_USLEEP=1
+        ;;
+    esac
+  fi
+])
diff --git a/gnulib-m4/vasnprintf.m4 b/gnulib-m4/vasnprintf.m4
index 2d4b4631..47c5951c 100644
--- a/gnulib-m4/vasnprintf.m4
+++ b/gnulib-m4/vasnprintf.m4
@@ -1,5 +1,5 @@
 # vasnprintf.m4 serial 36
-dnl Copyright (C) 2002-2004, 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2004, 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/warn-on-use.m4 b/gnulib-m4/warn-on-use.m4
index 08440ec5..25ce7378 100644
--- a/gnulib-m4/warn-on-use.m4
+++ b/gnulib-m4/warn-on-use.m4
@@ -1,5 +1,5 @@
 # warn-on-use.m4 serial 5
-dnl Copyright (C) 2010-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2010-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/wchar_h.m4 b/gnulib-m4/wchar_h.m4
index 16017a59..d09ea08c 100644
--- a/gnulib-m4/wchar_h.m4
+++ b/gnulib-m4/wchar_h.m4
@@ -1,13 +1,13 @@
 dnl A placeholder for ISO C99 <wchar.h>, for platforms that have issues.
 
-dnl Copyright (C) 2007-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl Written by Eric Blake.
 
-# wchar_h.m4 serial 40
+# wchar_h.m4 serial 42
 
 AC_DEFUN([gl_WCHAR_H],
 [
@@ -35,6 +35,8 @@ AC_DEFUN([gl_WCHAR_H],
   fi
   AC_SUBST([HAVE_WINT_T])
 
+  AC_REQUIRE([gl_TYPE_WINT_T_PREREQ])
+
   dnl Check for declarations of anything we want to poison if the
   dnl corresponding gnulib module is not in use.
   gl_WARN_ON_USE_PREPARE([[
@@ -53,7 +55,7 @@ AC_DEFUN([gl_WCHAR_H],
      wcsrtombs wcsnrtombs wcwidth wmemchr wmemcmp wmemcpy wmemmove wmemset
      wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat wcsncat wcscmp
      wcsncmp wcscasecmp wcsncasecmp wcscoll wcsxfrm wcsdup wcschr wcsrchr
-     wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth
+     wcscspn wcsspn wcspbrk wcsstr wcstok wcswidth wcsftime
     ])
 ])
 
@@ -61,8 +63,8 @@ dnl Check whether <wchar.h> is usable at all.
 AC_DEFUN([gl_WCHAR_H_INLINE_OK],
 [
   dnl Test whether <wchar.h> suffers due to the transition from '__inline' to
-  dnl 'gnu_inline'. See <http://sourceware.org/bugzilla/show_bug.cgi?id=4022>
-  dnl and <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary,
+  dnl 'gnu_inline'. See <https://sourceware.org/bugzilla/show_bug.cgi?id=4022>
+  dnl and <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=42440>. In summary,
   dnl glibc version 2.5 or older, together with gcc version 4.3 or newer and
   dnl the option -std=c99 or -std=gnu99, leads to a broken <wchar.h>.
   AC_CACHE_CHECK([whether <wchar.h> uses 'inline' correctly],
@@ -120,7 +122,7 @@ This is a known interoperability problem of glibc <= 2.5 with gcc >= 4.3 in
 C99 mode. You have four options:
   - Add the flag -fgnu89-inline to CC and reconfigure, or
   - Fix your include files, using parts of
-    <http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or
+    <https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=b037a293a48718af30d706c2e18c929d0e69a621>, or
   - Use a gcc version older than 4.3, or
   - Don't use the flags -std=c99 or -std=gnu99.
 Configuration aborted.])
@@ -177,6 +179,7 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS],
   GNULIB_WCSSTR=0;      AC_SUBST([GNULIB_WCSSTR])
   GNULIB_WCSTOK=0;      AC_SUBST([GNULIB_WCSTOK])
   GNULIB_WCSWIDTH=0;    AC_SUBST([GNULIB_WCSWIDTH])
+  GNULIB_WCSFTIME=0;    AC_SUBST([GNULIB_WCSFTIME])
   dnl Assume proper GNU behavior unless another module says otherwise.
   HAVE_BTOWC=1;         AC_SUBST([HAVE_BTOWC])
   HAVE_MBSINIT=1;       AC_SUBST([HAVE_MBSINIT])
@@ -215,6 +218,7 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS],
   HAVE_WCSSTR=1;        AC_SUBST([HAVE_WCSSTR])
   HAVE_WCSTOK=1;        AC_SUBST([HAVE_WCSTOK])
   HAVE_WCSWIDTH=1;      AC_SUBST([HAVE_WCSWIDTH])
+  HAVE_WCSFTIME=1;      AC_SUBST([HAVE_WCSFTIME])
   HAVE_DECL_WCTOB=1;    AC_SUBST([HAVE_DECL_WCTOB])
   HAVE_DECL_WCWIDTH=1;  AC_SUBST([HAVE_DECL_WCWIDTH])
   REPLACE_MBSTATE_T=0;  AC_SUBST([REPLACE_MBSTATE_T])
@@ -230,4 +234,5 @@ AC_DEFUN([gl_WCHAR_H_DEFAULTS],
   REPLACE_WCSNRTOMBS=0; AC_SUBST([REPLACE_WCSNRTOMBS])
   REPLACE_WCWIDTH=0;    AC_SUBST([REPLACE_WCWIDTH])
   REPLACE_WCSWIDTH=0;   AC_SUBST([REPLACE_WCSWIDTH])
+  REPLACE_WCSFTIME=0;   AC_SUBST([REPLACE_WCSFTIME])
 ])
diff --git a/gnulib-m4/wchar_t.m4 b/gnulib-m4/wchar_t.m4
index 2db8c3f2..11783d29 100644
--- a/gnulib-m4/wchar_t.m4
+++ b/gnulib-m4/wchar_t.m4
@@ -1,5 +1,5 @@
 # wchar_t.m4 serial 4 (gettext-0.18.2)
-dnl Copyright (C) 2002-2003, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2003, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/wcrtomb.m4 b/gnulib-m4/wcrtomb.m4
index 267b3c9b..fcc3f8c8 100644
--- a/gnulib-m4/wcrtomb.m4
+++ b/gnulib-m4/wcrtomb.m4
@@ -1,5 +1,5 @@
-# wcrtomb.m4 serial 11
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+# wcrtomb.m4 serial 12
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -51,6 +51,8 @@ changequote(,)dnl
           case "$host_os" in
                                      # Guess no on AIX 4, OSF/1 and Solaris.
             aix4* | osf* | solaris*) gl_cv_func_wcrtomb_retval="guessing no" ;;
+                                     # Guess yes on native Windows.
+            mingw*)                  gl_cv_func_wcrtomb_retval="guessing yes" ;;
                                      # Guess yes otherwise.
             *)                       gl_cv_func_wcrtomb_retval="guessing yes" ;;
           esac
diff --git a/gnulib-m4/wctob.m4 b/gnulib-m4/wctob.m4
index bdb52994..7b7d4626 100644
--- a/gnulib-m4/wctob.m4
+++ b/gnulib-m4/wctob.m4
@@ -1,5 +1,5 @@
-# wctob.m4 serial 10
-dnl Copyright (C) 2008-2016 Free Software Foundation, Inc.
+# wctob.m4 serial 11
+dnl Copyright (C) 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -17,7 +17,7 @@ AC_DEFUN([gl_FUNC_WCTOB],
 
     dnl Solaris 9 has the wctob() function but it does not work.
     dnl Cygwin 1.7.2 has the wctob() function but it clobbers caller-owned
-    dnl registers, see <http://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
+    dnl registers, see <https://cygwin.com/ml/cygwin/2010-05/msg00015.html>.
     AC_REQUIRE([AC_PROG_CC])
     AC_REQUIRE([gt_LOCALE_FR])
     AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
@@ -31,6 +31,9 @@ changequote(,)dnl
             # Guess no on Solaris <= 9 and Cygwin.
           solaris2.[1-9] | solaris2.[1-9].* | cygwin*)
             gl_cv_func_wctob_works="guessing no" ;;
+            # Guess no on native Windows.
+          mingw*)
+            gl_cv_func_wctob_works="guessing no" ;;
             # Guess yes otherwise.
           *) gl_cv_func_wctob_works="guessing yes" ;;
         esac
diff --git a/gnulib-m4/wctomb.m4 b/gnulib-m4/wctomb.m4
index 7c8b3eff..dc1860f2 100644
--- a/gnulib-m4/wctomb.m4
+++ b/gnulib-m4/wctomb.m4
@@ -1,5 +1,5 @@
 # wctomb.m4 serial 2
-dnl Copyright (C) 2011-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2011-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/wctype_h.m4 b/gnulib-m4/wctype_h.m4
index accc001c..596f26b5 100644
--- a/gnulib-m4/wctype_h.m4
+++ b/gnulib-m4/wctype_h.m4
@@ -1,8 +1,8 @@
-# wctype_h.m4 serial 18
+# wctype_h.m4 serial 21
 
 dnl A placeholder for ISO C99 <wctype.h>, for platforms that lack it.
 
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -30,6 +30,8 @@ AC_DEFUN([gl_WCTYPE_H],
   fi
   AC_SUBST([HAVE_WINT_T])
 
+  AC_REQUIRE([gl_TYPE_WINT_T_PREREQ])
+
   gl_CHECK_NEXT_HEADERS([wctype.h])
   if test $ac_cv_header_wctype_h = yes; then
     if test $ac_cv_func_iswcntrl = yes; then
@@ -51,7 +53,8 @@ AC_DEFUN([gl_WCTYPE_H],
                int main () { return iswprint ('x') == 0; }
             ]])],
             [gl_cv_func_iswcntrl_works=yes], [gl_cv_func_iswcntrl_works=no],
-            [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
+            [dnl Guess no on Linux libc5, yes otherwise.
+             AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <stdlib.h>
                           #if __GNU_LIBRARY__ == 1
                           Linux libc5 i18n is broken.
                           #endif]], [])],
diff --git a/gnulib-m4/wcwidth.m4 b/gnulib-m4/wcwidth.m4
index 7a743c0a..12436063 100644
--- a/gnulib-m4/wcwidth.m4
+++ b/gnulib-m4/wcwidth.m4
@@ -1,5 +1,5 @@
-# wcwidth.m4 serial 23
-dnl Copyright (C) 2006-2016 Free Software Foundation, Inc.
+# wcwidth.m4 serial 25
+dnl Copyright (C) 2006-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
@@ -34,7 +34,20 @@ AC_DEFUN([gl_FUNC_WCWIDTH],
     HAVE_DECL_WCWIDTH=0
   fi
 
-  if test $ac_cv_func_wcwidth = yes; then
+  if test $ac_cv_func_wcwidth != yes; then
+    AC_CACHE_CHECK([whether wcwidth is a macro],
+      [gl_cv_func_wcwidth_macro],
+      [AC_EGREP_CPP([wchar_header_defines_wcwidth], [
+#include <wchar.h>
+#ifdef wcwidth
+ wchar_header_defines_wcwidth
+#endif],
+         [gl_cv_func_wcwidth_macro=yes],
+         [gl_cv_func_wcwidth_macro=no])
+      ])
+  fi
+
+  if test $ac_cv_func_wcwidth = yes || test $gl_cv_func_wcwidth_macro = yes; then
     HAVE_WCWIDTH=1
     dnl On Mac OS X 10.3, wcwidth(0x0301) (COMBINING ACUTE ACCENT) returns 1.
     dnl On OpenBSD 5.0, wcwidth(0x05B0) (HEBREW POINT SHEVA) returns 1.
diff --git a/gnulib-m4/wint_t.m4 b/gnulib-m4/wint_t.m4
index 8ff2a5b5..d30b8bcf 100644
--- a/gnulib-m4/wint_t.m4
+++ b/gnulib-m4/wint_t.m4
@@ -1,11 +1,12 @@
-# wint_t.m4 serial 5 (gettext-0.18.2)
-dnl Copyright (C) 2003, 2007-2016 Free Software Foundation, Inc.
+# wint_t.m4 serial 7
+dnl Copyright (C) 2003, 2007-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 
 dnl From Bruno Haible.
-dnl Test whether <wchar.h> has the 'wint_t' type.
+dnl Test whether <wchar.h> has the 'wint_t' type and whether gnulib's
+dnl <wchar.h> or <wctype.h> would, if present, override 'wint_t'.
 dnl Prerequisite: AC_PROG_CC
 
 AC_DEFUN([gt_TYPE_WINT_T],
@@ -28,5 +29,46 @@ AC_DEFUN([gt_TYPE_WINT_T],
        [gt_cv_c_wint_t=no])])
   if test $gt_cv_c_wint_t = yes; then
     AC_DEFINE([HAVE_WINT_T], [1], [Define if you have the 'wint_t' type.])
+
+    dnl Determine whether gnulib's <wchar.h> or <wctype.h> would, if present,
+    dnl override 'wint_t'.
+    AC_CACHE_CHECK([whether wint_t is too small],
+      [gl_cv_type_wint_t_too_small],
+      [AC_COMPILE_IFELSE(
+           [AC_LANG_PROGRAM([[
+/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
+   <wchar.h>.
+   BSD/OS 4.0.1 has a bug: <stddef.h>, <stdio.h> and <time.h> must be
+   included before <wchar.h>.  */
+#if !(defined __GLIBC__ && !defined __UCLIBC__)
+# include <stddef.h>
+# include <stdio.h>
+# include <time.h>
+#endif
+#include <wchar.h>
+              int verify[sizeof (wint_t) < sizeof (int) ? -1 : 1];
+              ]])],
+           [gl_cv_type_wint_t_too_small=no],
+           [gl_cv_type_wint_t_too_small=yes])])
+    if test $gl_cv_type_wint_t_too_small = yes; then
+      GNULIB_OVERRIDES_WINT_T=1
+    else
+      GNULIB_OVERRIDES_WINT_T=0
+    fi
+  else
+    GNULIB_OVERRIDES_WINT_T=0
+  fi
+  AC_SUBST([GNULIB_OVERRIDES_WINT_T])
+])
+
+dnl Prerequisites of the 'wint_t' override.
+AC_DEFUN([gl_TYPE_WINT_T_PREREQ],
+[
+  AC_CHECK_HEADERS_ONCE([crtdefs.h])
+  if test $ac_cv_header_crtdefs_h = yes; then
+    HAVE_CRTDEFS_H=1
+  else
+    HAVE_CRTDEFS_H=0
   fi
+  AC_SUBST([HAVE_CRTDEFS_H])
 ])
diff --git a/gnulib-m4/xalloc.m4 b/gnulib-m4/xalloc.m4
index f4f540d1..53aba149 100644
--- a/gnulib-m4/xalloc.m4
+++ b/gnulib-m4/xalloc.m4
@@ -1,5 +1,5 @@
 # xalloc.m4 serial 18
-dnl Copyright (C) 2002-2006, 2009-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2002-2006, 2009-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/xsize.m4 b/gnulib-m4/xsize.m4
index 16764e89..5f850577 100644
--- a/gnulib-m4/xsize.m4
+++ b/gnulib-m4/xsize.m4
@@ -1,5 +1,5 @@
 # xsize.m4 serial 5
-dnl Copyright (C) 2003-2004, 2008-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2003-2004, 2008-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
diff --git a/gnulib-m4/yield.m4 b/gnulib-m4/yield.m4
index 07f5f11a..c6682b95 100644
--- a/gnulib-m4/yield.m4
+++ b/gnulib-m4/yield.m4
@@ -1,5 +1,5 @@
 # yield.m4 serial 2
-dnl Copyright (C) 2005-2016 Free Software Foundation, Inc.
+dnl Copyright (C) 2005-2017 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
author	Jörg Frings-Fürst <debian@jff-webhosting.net>	2017-12-03 20:50:11 +0100
committer	Jörg Frings-Fürst <debian@jff-webhosting.net>	2017-12-03 20:50:11 +0100
commit	4cf52fc0bc3b80c0ef6c58c5db4413ebdafe661c (patch)
tree	676b26b024117cf656080a011e3d17b8fb6889af /gnulib-m4
parent	1ecbfbb92248e67b564f5b144c4671ccaa86ee2f (diff)
parent	44ff3127b1e57b703c2a73a24f7ab38e4aad8ae4 (diff)