diff options
| author | Paul Eggert <eggert@cs.ucla.edu> | 2016-02-06 10:13:50 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2016-02-06 17:17:48 -0800 |
| commit | 14f568f6830b49214e0ad020c9d30559ce8abc7d (patch) | |
| tree | 66a366050a992811122a10b168d4f85e21f95a3e /lib/autoconf/functions.m4 | |
| parent | 09b6e78d1592ce10fdc975025d699ee41444aa3f (diff) | |
| download | autoconf-14f568f6830b49214e0ad020c9d30559ce8abc7d.tar.gz | |
Port better to gcc -fsanitize=address
* lib/autoconf/functions.m4 (_AC_FUNC_MALLOC_IF, _AC_FUNC_REALLOC_IF):
Free heap-allocated storage before exiting.
Diffstat (limited to 'lib/autoconf/functions.m4')
| -rw-r--r-- | lib/autoconf/functions.m4 | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/lib/autoconf/functions.m4 b/lib/autoconf/functions.m4 index 51ae5a42..edc666d4 100644 --- a/lib/autoconf/functions.m4 +++ b/lib/autoconf/functions.m4 @@ -905,7 +905,10 @@ AC_CACHE_CHECK([for GNU libc compatible malloc], ac_cv_func_malloc_0_nonnull, [AC_LANG_PROGRAM( [[#include <stdlib.h> ]], - [return ! malloc (0);])], + [char *p = malloc (0); + int result = !p; + free (p); + return result;])], [ac_cv_func_malloc_0_nonnull=yes], [ac_cv_func_malloc_0_nonnull=no], [case "$host_os" in # (( @@ -1409,7 +1412,10 @@ AC_CACHE_CHECK([for GNU libc compatible realloc], ac_cv_func_realloc_0_nonnull, [AC_LANG_PROGRAM( [[#include <stdlib.h> ]], - [return ! realloc (0, 0);])], + [char *p = realloc (0, 0); + int result = !p; + free (p); + return result;])], [ac_cv_func_realloc_0_nonnull=yes], [ac_cv_func_realloc_0_nonnull=no], [case "$host_os" in # (( |