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Diffstat (limited to 'gnulib-m4/gnulib-common.m4')
-rw-r--r--gnulib-m4/gnulib-common.m4304
1 files changed, 28 insertions, 276 deletions
diff --git a/gnulib-m4/gnulib-common.m4 b/gnulib-m4/gnulib-common.m4
index 40e82f6e..4c7ac30d 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) 2007-2015 Free Software Foundation, Inc.
+# gnulib-common.m4 serial 20
+dnl Copyright (C) 2007-2010 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.
@@ -12,25 +12,11 @@ AC_DEFUN([gl_COMMON], [
AC_REQUIRE([gl_COMMON_BODY])
])
AC_DEFUN([gl_COMMON_BODY], [
- AH_VERBATIM([_Noreturn],
-[/* The _Noreturn keyword of C11. */
-#if ! (defined _Noreturn \
- || (defined __STDC_VERSION__ && 201112 <= __STDC_VERSION__))
-# if (3 <= __GNUC__ || (__GNUC__ == 2 && 8 <= __GNUC_MINOR__) \
- || 0x5110 <= __SUNPRO_C)
-# define _Noreturn __attribute__ ((__noreturn__))
-# elif defined _MSC_VER && 1200 <= _MSC_VER
-# define _Noreturn __declspec (noreturn)
-# else
-# define _Noreturn
-# endif
-#endif
-])
AH_VERBATIM([isoc99_inline],
[/* Work around a bug in Apple GCC 4.0.1 build 5465: In C99 mode, it supports
the ISO C 99 semantics of 'extern inline' (unlike the GNU C semantics of
earlier versions), but does not display it by setting __GNUC_STDC_INLINE__.
- __APPLE__ && __MACH__ test for Mac OS X.
+ __APPLE__ && __MACH__ test for MacOS X.
__APPLE_CC__ tests for the Apple compiler and its version.
__STDC_VERSION__ tests for the C99 mode. */
#if defined __APPLE__ && defined __MACH__ && __APPLE_CC__ >= 5465 && !defined __cplusplus && __STDC_VERSION__ >= 199901L && !defined __GNUC_STDC_INLINE__
@@ -48,30 +34,6 @@ AC_DEFUN([gl_COMMON_BODY], [
/* The name _UNUSED_PARAMETER_ is an earlier spelling, although the name
is a misnomer outside of parameter lists. */
#define _UNUSED_PARAMETER_ _GL_UNUSED
-
-/* gcc supports the "unused" attribute on possibly unused labels, and
- g++ has since version 4.5. Note to support C++ as well as C,
- _GL_UNUSED_LABEL should be used with a trailing ; */
-#if !defined __cplusplus || __GNUC__ > 4 \
- || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
-# define _GL_UNUSED_LABEL _GL_UNUSED
-#else
-# define _GL_UNUSED_LABEL
-#endif
-
-/* The __pure__ attribute was added in gcc 2.96. */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
-# define _GL_ATTRIBUTE_PURE __attribute__ ((__pure__))
-#else
-# define _GL_ATTRIBUTE_PURE /* empty */
-#endif
-
-/* The __const__ attribute was added in gcc 2.95. */
-#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95)
-# define _GL_ATTRIBUTE_CONST __attribute__ ((__const__))
-#else
-# define _GL_ATTRIBUTE_CONST /* empty */
-#endif
])
dnl Preparation for running test programs:
dnl Tell glibc to write diagnostics from -D_FORTIFY_SOURCE=2 to stderr, not
@@ -85,49 +47,16 @@ AC_DEFUN([gl_COMMON_BODY], [
# expands to a C preprocessor expression that evaluates to 1 or 0, depending
# whether a gnulib module that has been requested shall be considered present
# or not.
-m4_define([gl_MODULE_INDICATOR_CONDITION], [1])
+AC_DEFUN([gl_MODULE_INDICATOR_CONDITION], [1])
# gl_MODULE_INDICATOR_SET_VARIABLE([modulename])
# sets the shell variable that indicates the presence of the given module to
# a C preprocessor expression that will evaluate to 1.
AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE],
[
- gl_MODULE_INDICATOR_SET_VARIABLE_AUX(
- [GNULIB_[]m4_translit([[$1]],
- [abcdefghijklmnopqrstuvwxyz./-],
- [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])],
- [gl_MODULE_INDICATOR_CONDITION])
-])
-
-# gl_MODULE_INDICATOR_SET_VARIABLE_AUX([variable])
-# modifies the shell variable to include the gl_MODULE_INDICATOR_CONDITION.
-# The shell variable's value is a C preprocessor expression that evaluates
-# to 0 or 1.
-AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX],
-[
- m4_if(m4_defn([gl_MODULE_INDICATOR_CONDITION]), [1],
- [
- dnl Simplify the expression VALUE || 1 to 1.
- $1=1
- ],
- [gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([$1],
- [gl_MODULE_INDICATOR_CONDITION])])
-])
-
-# gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR([variable], [condition])
-# modifies the shell variable to include the given condition. The shell
-# variable's value is a C preprocessor expression that evaluates to 0 or 1.
-AC_DEFUN([gl_MODULE_INDICATOR_SET_VARIABLE_AUX_OR],
-[
- dnl Simplify the expression 1 || CONDITION to 1.
- if test "$[]$1" != 1; then
- dnl Simplify the expression 0 || CONDITION to CONDITION.
- if test "$[]$1" = 0; then
- $1=$2
- else
- $1="($[]$1 || $2)"
- fi
- fi
+ GNULIB_[]m4_translit([[$1]],
+ [abcdefghijklmnopqrstuvwxyz./-],
+ [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])=gl_MODULE_INDICATOR_CONDITION
])
# gl_MODULE_INDICATOR([modulename])
@@ -173,40 +102,6 @@ AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS],
[Define to 1 when the gnulib module $1 should be tested.])
])
-# gl_ASSERT_NO_GNULIB_POSIXCHECK
-# asserts that there will never be a need to #define GNULIB_POSIXCHECK.
-# and thereby enables an optimization of configure and config.h.
-# Used by Emacs.
-AC_DEFUN([gl_ASSERT_NO_GNULIB_POSIXCHECK],
-[
- dnl Override gl_WARN_ON_USE_PREPARE.
- dnl But hide this definition from 'aclocal'.
- AC_DEFUN([gl_W][ARN_ON_USE_PREPARE], [])
-])
-
-# gl_ASSERT_NO_GNULIB_TESTS
-# asserts that there will be no gnulib tests in the scope of the configure.ac
-# and thereby enables an optimization of config.h.
-# Used by Emacs.
-AC_DEFUN([gl_ASSERT_NO_GNULIB_TESTS],
-[
- dnl Override gl_MODULE_INDICATOR_FOR_TESTS.
- AC_DEFUN([gl_MODULE_INDICATOR_FOR_TESTS], [])
-])
-
-# Test whether <features.h> exists.
-# Set HAVE_FEATURES_H.
-AC_DEFUN([gl_FEATURES_H],
-[
- AC_CHECK_HEADERS_ONCE([features.h])
- if test $ac_cv_header_features_h = yes; then
- HAVE_FEATURES_H=1
- else
- HAVE_FEATURES_H=0
- fi
- AC_SUBST([HAVE_FEATURES_H])
-])
-
# m4_foreach_w
# is a backport of autoconf-2.59c's m4_foreach_w.
# Remove this macro when we can assume autoconf >= 2.60.
@@ -222,90 +117,11 @@ m4_ifndef([AS_VAR_IF],
[m4_define([AS_VAR_IF],
[AS_IF([test x"AS_VAR_GET([$1])" = x""$2], [$3], [$4])])])
-# gl_PROG_CC_C99
-# Modifies the value of the shell variable CC in an attempt to make $CC
-# understand ISO C99 source code.
-# This is like AC_PROG_CC_C99, except that
-# - AC_PROG_CC_C99 did not exist in Autoconf versions < 2.60,
-# - AC_PROG_CC_C99 does not mix well with AC_PROG_CC_STDC
-# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00367.html>,
-# but many more packages use AC_PROG_CC_STDC than AC_PROG_CC_C99
-# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00441.html>.
-# Remaining problems:
-# - When AC_PROG_CC_STDC is invoked twice, it adds the C99 enabling options
-# to CC twice
-# <http://lists.gnu.org/archive/html/bug-gnulib/2011-09/msg00431.html>.
-# - AC_PROG_CC_STDC is likely to change now that C11 is an ISO standard.
-AC_DEFUN([gl_PROG_CC_C99],
-[
- dnl Change that version number to the minimum Autoconf version that supports
- dnl mixing AC_PROG_CC_C99 calls with AC_PROG_CC_STDC calls.
- m4_version_prereq([9.0],
- [AC_REQUIRE([AC_PROG_CC_C99])],
- [AC_REQUIRE([AC_PROG_CC_STDC])])
-])
-
-# gl_PROG_AR_RANLIB
-# Determines the values for AR, ARFLAGS, RANLIB that fit with the compiler.
-# The user can set the variables AR, ARFLAGS, RANLIB if he wants to override
-# the values.
-AC_DEFUN([gl_PROG_AR_RANLIB],
-[
- dnl Minix 3 comes with two toolchains: The Amsterdam Compiler Kit compiler
- dnl as "cc", and GCC as "gcc". They have different object file formats and
- dnl library formats. In particular, the GNU binutils programs ar, ranlib
- dnl produce libraries that work only with gcc, not with cc.
- AC_REQUIRE([AC_PROG_CC])
- AC_CACHE_CHECK([for Minix Amsterdam compiler], [gl_cv_c_amsterdam_compiler],
- [
- AC_EGREP_CPP([Amsterdam],
- [
-#ifdef __ACK__
-Amsterdam
-#endif
- ],
- [gl_cv_c_amsterdam_compiler=yes],
- [gl_cv_c_amsterdam_compiler=no])
- ])
- if test -z "$AR"; then
- if test $gl_cv_c_amsterdam_compiler = yes; then
- AR='cc -c.a'
- if test -z "$ARFLAGS"; then
- ARFLAGS='-o'
- fi
- else
- dnl Use the Automake-documented default values for AR and ARFLAGS,
- dnl but prefer ${host}-ar over ar (useful for cross-compiling).
- AC_CHECK_TOOL([AR], [ar], [ar])
- if test -z "$ARFLAGS"; then
- ARFLAGS='cr'
- fi
- fi
- else
- if test -z "$ARFLAGS"; then
- ARFLAGS='cr'
- fi
- fi
- AC_SUBST([AR])
- AC_SUBST([ARFLAGS])
- if test -z "$RANLIB"; then
- if test $gl_cv_c_amsterdam_compiler = yes; then
- RANLIB=':'
- else
- dnl Use the ranlib program if it is available.
- AC_PROG_RANLIB
- fi
- fi
- AC_SUBST([RANLIB])
-])
-
# AC_PROG_MKDIR_P
# is a backport of autoconf-2.60's AC_PROG_MKDIR_P, with a fix
# for interoperability with automake-1.9.6 from autoconf-2.62.
# Remove this macro when we can assume autoconf >= 2.62 or
# autoconf >= 2.60 && automake >= 1.10.
-# AC_AUTOCONF_VERSION was introduced in 2.62, so use that as the witness.
-m4_ifndef([AC_AUTOCONF_VERSION],[
m4_ifdef([AC_PROG_MKDIR_P], [
dnl For automake-1.9.6 && autoconf < 2.62: Ensure MKDIR_P is AC_SUBSTed.
m4_define([AC_PROG_MKDIR_P],
@@ -316,31 +132,27 @@ m4_ifdef([AC_PROG_MKDIR_P], [
[AC_REQUIRE([AM_PROG_MKDIR_P])dnl defined by automake
MKDIR_P='$(mkdir_p)'
AC_SUBST([MKDIR_P])])])
-])
# AC_C_RESTRICT
-# This definition is copied from post-2.69 Autoconf and overrides the
-# AC_C_RESTRICT macro from autoconf 2.60..2.69. It can be removed
-# once autoconf >= 2.70 can be assumed. It's painful to check version
-# numbers, and in practice this macro is more up-to-date than Autoconf
-# is, so override Autoconf unconditionally.
+# This definition overrides the AC_C_RESTRICT macro from autoconf 2.60..2.61,
+# so that mixed use of GNU C and GNU C++ and mixed use of Sun C and Sun C++
+# works.
+# This definition can be removed once autoconf >= 2.62 can be assumed.
+m4_if(m4_version_compare(m4_defn([m4_PACKAGE_VERSION]),[2.62]),[-1],[
AC_DEFUN([AC_C_RESTRICT],
[AC_CACHE_CHECK([for C/C++ restrict keyword], [ac_cv_c_restrict],
[ac_cv_c_restrict=no
# The order here caters to the fact that C++ does not require restrict.
for ac_kw in __restrict __restrict__ _Restrict restrict; do
- AC_COMPILE_IFELSE(
- [AC_LANG_PROGRAM(
- [[typedef int *int_ptr;
- int foo (int_ptr $ac_kw ip) { return ip[0]; }
- int bar (int [$ac_kw]); /* Catch GCC bug 14050. */
- int bar (int ip[$ac_kw]) { return ip[0]; }
- ]],
- [[int s[1];
- int *$ac_kw t = s;
- t[0] = 0;
- return foo (t) + bar (t);
- ]])],
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+ [[typedef int * int_ptr;
+ int foo (int_ptr $ac_kw ip) {
+ return ip[0];
+ }]],
+ [[int s[1];
+ int * $ac_kw t = s;
+ t[0] = 0;
+ return foo(t)]])],
[ac_cv_c_restrict=$ac_kw])
test "$ac_cv_c_restrict" != no && break
done
@@ -350,21 +162,21 @@ AC_DEFUN([AC_C_RESTRICT],
nothing if this is not supported. Do not define if restrict is
supported directly. */
#undef restrict
-/* Work around a bug in Sun C++: it does not support _Restrict or
- __restrict__, even though the corresponding Sun C compiler ends up with
- "#define restrict _Restrict" or "#define restrict __restrict__" in the
- previous line. Perhaps some future version of Sun C++ will work with
- restrict; if so, hopefully it defines __RESTRICT like Sun C does. */
+/* Work around a bug in Sun C++: it does not support _Restrict, even
+ though the corresponding Sun C compiler does, which causes
+ "#define restrict _Restrict" in the previous line. Perhaps some future
+ version of Sun C++ will work with _Restrict; if so, it'll probably
+ define __RESTRICT, just as Sun C does. */
#if defined __SUNPRO_CC && !defined __RESTRICT
# define _Restrict
-# define __restrict__
#endif])
case $ac_cv_c_restrict in
restrict) ;;
no) AC_DEFINE([restrict], []) ;;
*) AC_DEFINE_UNQUOTED([restrict], [$ac_cv_c_restrict]) ;;
esac
-])# AC_C_RESTRICT
+])
+])
# gl_BIGENDIAN
# is like AC_C_BIGENDIAN, except that it can be AC_REQUIREd.
@@ -387,63 +199,3 @@ AC_DEFUN([gl_CACHE_VAL_SILENT],
AC_CACHE_VAL([$1], [$2])
as_echo_n="$saved_as_echo_n"
])
-
-# AS_VAR_COPY was added in autoconf 2.63b
-m4_define_default([AS_VAR_COPY],
-[AS_LITERAL_IF([$1[]$2], [$1=$$2], [eval $1=\$$2])])
-
-# AC_PROG_SED was added in autoconf 2.59b
-m4_ifndef([AC_PROG_SED],
-[AC_DEFUN([AC_PROG_SED],
-[AC_CACHE_CHECK([for a sed that does not truncate output], ac_cv_path_SED,
- [dnl ac_script should not contain more than 99 commands (for HP-UX sed),
- dnl but more than about 7000 bytes, to catch a limit in Solaris 8 /usr/ucb/sed.
- ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
- for ac_i in 1 2 3 4 5 6 7; do
- ac_script="$ac_script$as_nl$ac_script"
- done
- echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
- AS_UNSET([ac_script])
- if test -z "$SED"; then
- ac_path_SED_found=false
- _AS_PATH_WALK([], [
- for ac_prog in sed gsed; do
- for ac_exec_ext in '' $ac_executable_extensions; do
- ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
- AS_EXECUTABLE_P(["$ac_path_SED"]) || continue
- case `"$ac_path_SED" --version 2>&1` in
- *GNU*) ac_cv_path_SED=$ac_path_SED ac_path_SED_found=:;;
- *)
- ac_count=0
- _AS_ECHO_N([0123456789]) >conftest.in
- while :
- do
- cat conftest.in conftest.in >conftest.tmp
- mv conftest.tmp conftest.in
- cp conftest.in conftest.nl
- echo >> conftest.nl
- "$ac_path_SED" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
- diff conftest.out conftest.nl >/dev/null 2>&1 || break
- ac_count=`expr $ac_count + 1`
- if test $ac_count -gt ${ac_path_SED_max-0}; then
- # Best so far, but keep looking for better
- ac_cv_path_SED=$ac_path_SED
- ac_path_SED_max=$ac_count
- fi
- test $ac_count -gt 10 && break
- done
- rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
- esac
- $ac_path_SED_found && break 3
- done
- done])
- if test -z "$ac_cv_path_SED"; then
- AC_ERROR([no acceptable sed could be found in \$PATH])
- fi
- else
- ac_cv_path_SED=$SED
- fi
- SED="$ac_cv_path_SED"
- AC_SUBST([SED])dnl
- rm -f conftest.sed
-])])])