summaryrefslogtreecommitdiff
path: root/gnulib-m4/malloc.m4
diff options
context:
space:
mode:
Diffstat (limited to 'gnulib-m4/malloc.m4')
-rw-r--r--gnulib-m4/malloc.m479
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])
])
])