diff options
Diffstat (limited to 'gnulib-m4/malloc.m4')
| -rw-r--r-- | gnulib-m4/malloc.m4 | 79 |
1 files changed, 11 insertions, 68 deletions
diff --git a/gnulib-m4/malloc.m4 b/gnulib-m4/malloc.m4 index 31368ab9..910ac922 100644 --- a/gnulib-m4/malloc.m4 +++ b/gnulib-m4/malloc.m4 @@ -1,78 +1,25 @@ -# malloc.m4 serial 14 -dnl Copyright (C) 2007, 2009-2015 Free Software Foundation, Inc. +# malloc.m4 serial 9 +dnl Copyright (C) 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. -m4_version_prereq([2.70], [] ,[ - -# This is taken from the following Autoconf patch: -# http://git.savannah.gnu.org/gitweb/?p=autoconf.git;a=commitdiff;h=7fbb553727ed7e0e689a17594b58559ecf3ea6e9 -AC_DEFUN([_AC_FUNC_MALLOC_IF], -[ - AC_REQUIRE([AC_HEADER_STDC])dnl - AC_REQUIRE([AC_CANONICAL_HOST])dnl for cross-compiles - AC_CHECK_HEADERS([stdlib.h]) - AC_CACHE_CHECK([for GNU libc compatible malloc], - [ac_cv_func_malloc_0_nonnull], - [AC_RUN_IFELSE( - [AC_LANG_PROGRAM( - [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H - # include <stdlib.h> - #else - char *malloc (); - #endif - ]], - [[return ! malloc (0);]]) - ], - [ac_cv_func_malloc_0_nonnull=yes], - [ac_cv_func_malloc_0_nonnull=no], - [case "$host_os" in - # Guess yes on platforms where we know the result. - *-gnu* | freebsd* | netbsd* | openbsd* \ - | hpux* | solaris* | cygwin* | mingw*) - ac_cv_func_malloc_0_nonnull=yes ;; - # If we don't know, assume the worst. - *) ac_cv_func_malloc_0_nonnull=no ;; - esac - ]) - ]) - AS_IF([test $ac_cv_func_malloc_0_nonnull = yes], [$1], [$2]) -])# _AC_FUNC_MALLOC_IF - -]) - -# gl_FUNC_MALLOC_GNU -# ------------------ -# Test whether 'malloc (0)' is handled like in GNU libc, and replace malloc if -# it is not. -AC_DEFUN([gl_FUNC_MALLOC_GNU], -[ - AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) - dnl _AC_FUNC_MALLOC_IF is defined in Autoconf. - _AC_FUNC_MALLOC_IF( - [AC_DEFINE([HAVE_MALLOC_GNU], [1], - [Define to 1 if your system has a GNU libc compatible 'malloc' - function, and to 0 otherwise.])], - [AC_DEFINE([HAVE_MALLOC_GNU], [0]) - REPLACE_MALLOC=1 - ]) -]) - # gl_FUNC_MALLOC_POSIX # -------------------- # Test whether 'malloc' is POSIX compliant (sets errno to ENOMEM when it # fails), and replace malloc if it is not. AC_DEFUN([gl_FUNC_MALLOC_POSIX], [ - AC_REQUIRE([gl_STDLIB_H_DEFAULTS]) AC_REQUIRE([gl_CHECK_MALLOC_POSIX]) if test $gl_cv_func_malloc_posix = yes; then + HAVE_MALLOC_POSIX=1 AC_DEFINE([HAVE_MALLOC_POSIX], [1], [Define if the 'malloc' function is POSIX compliant.]) else - REPLACE_MALLOC=1 + AC_LIBOBJ([malloc]) + HAVE_MALLOC_POSIX=0 fi + AC_SUBST([HAVE_MALLOC_POSIX]) ]) # Test whether malloc, realloc, calloc are POSIX compliant, @@ -85,14 +32,10 @@ AC_DEFUN([gl_CHECK_MALLOC_POSIX], dnl It is too dangerous to try to allocate a large amount of memory: dnl some systems go to their knees when you do that. So assume that dnl all Unix implementations of the function are POSIX compliant. - AC_COMPILE_IFELSE( - [AC_LANG_PROGRAM( - [[]], - [[#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ - choke me - #endif - ]])], - [gl_cv_func_malloc_posix=yes], - [gl_cv_func_malloc_posix=no]) + AC_TRY_COMPILE([], + [#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ + choke me + #endif + ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no]) ]) ]) |