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-rw-r--r--gnulib-m4/mmap-anon.m418
1 files changed, 11 insertions, 7 deletions
diff --git a/gnulib-m4/mmap-anon.m4 b/gnulib-m4/mmap-anon.m4
index 92a88d05..a6b7b9ac 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, 2009-2015 Free Software Foundation, Inc.
+# mmap-anon.m4 serial 8
+dnl Copyright (C) 2005, 2007, 2009-2010 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.
@@ -9,12 +9,16 @@ dnl with or without modifications, as long as this notice is preserved.
# - On Linux, AIX, OSF/1, Solaris, Cygwin, Interix, Haiku, both MAP_ANONYMOUS
# and MAP_ANON exist and have the same value.
# - On HP-UX, only MAP_ANONYMOUS exists.
-# - On Mac OS X, FreeBSD, NetBSD, OpenBSD, only MAP_ANON exists.
+# - On MacOS X, FreeBSD, NetBSD, OpenBSD, only MAP_ANON exists.
# - On IRIX, neither exists, and a file descriptor opened to /dev/zero must be
# used.
AC_DEFUN([gl_FUNC_MMAP_ANON],
[
+ dnl Work around a bug of AC_EGREP_CPP in autoconf-2.57.
+ AC_REQUIRE([AC_PROG_CPP])
+ AC_REQUIRE([AC_PROG_EGREP])
+
dnl Persuade glibc <sys/mman.h> to define MAP_ANONYMOUS.
AC_REQUIRE([gl_USE_SYSTEM_EXTENSIONS])
@@ -27,18 +31,18 @@ AC_DEFUN([gl_FUNC_MMAP_ANON],
gl_have_mmap_anonymous=no
if test $gl_have_mmap = yes; then
AC_MSG_CHECKING([for MAP_ANONYMOUS])
- AC_EGREP_CPP([I cannot identify this map], [
+ AC_EGREP_CPP([I cant identify this map.], [
#include <sys/mman.h>
#ifdef MAP_ANONYMOUS
- I cannot identify this map
+ I cant identify this map.
#endif
],
[gl_have_mmap_anonymous=yes])
if test $gl_have_mmap_anonymous != yes; then
- AC_EGREP_CPP([I cannot identify this map], [
+ AC_EGREP_CPP([I cant identify this map.], [
#include <sys/mman.h>
#ifdef MAP_ANON
- I cannot identify this map
+ I cant identify this map.
#endif
],
[AC_DEFINE([MAP_ANONYMOUS], [MAP_ANON],