diff options
| author | Alan Coopersmith <alan.coopersmith@oracle.com> | 2010-12-05 01:25:11 -0800 |
|---|---|---|
| committer | Alan Coopersmith <alan.coopersmith@oracle.com> | 2010-12-07 19:06:18 -0800 |
| commit | 7370b0b3f0308aec2a32012eddb2f0761d5fe399 (patch) | |
| tree | 2183a366729a313d4c8e46b997fe625d2441f0f8 /xorg-macros.m4.in | |
| parent | 04030cbca37c04c48161debc0cade6db00cb347b (diff) | |
Use AC_LANG_PROGRAM in XORG_CHECK_MALLOC_ZERO to clear autoconf-2.68 warnings
configure.ac:126: warning: AC_LANG_CONFTEST: no AC_LANG_SOURCE call detected in body
../../lib/autoconf/lang.m4:194: AC_LANG_CONFTEST is expanded from...
../../lib/autoconf/general.m4:2730: _AC_RUN_IFELSE is expanded from...
../../lib/m4sugar/m4sh.m4:606: AS_IF is expanded from...
../../lib/autoconf/general.m4:2749: AC_RUN_IFELSE is expanded from...
aclocal.m4:1952: XORG_CHECK_MALLOC_ZERO is expanded from...
configure.ac:126: the top level
Also, calloc() takes two arguments; and all of them return void *,
not char *; as the compiler points out when you #include <stdlib.h>
instead of faking it badly. (And sometimes when you don't, due to
compiler builtin versions of the functions.)
Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Dan Nicholson <dbn.lists@gmail.com>
Reviewed-by: Gaetan Nadon <memsize@videotron.ca>
Diffstat (limited to 'xorg-macros.m4.in')
| -rw-r--r-- | xorg-macros.m4.in | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/xorg-macros.m4.in b/xorg-macros.m4.in index fe29881..c7df523 100644 --- a/xorg-macros.m4.in +++ b/xorg-macros.m4.in @@ -904,18 +904,16 @@ AC_ARG_ENABLE(malloc0returnsnull, AC_MSG_CHECKING([whether malloc(0) returns NULL]) if test "x$MALLOC_ZERO_RETURNS_NULL" = xauto; then - AC_RUN_IFELSE([ -char *malloc(); -char *realloc(); -char *calloc(); -main() { + AC_RUN_IFELSE([AC_LANG_PROGRAM([ +#include <stdlib.h> +],[ char *m0, *r0, *c0, *p; m0 = malloc(0); p = malloc(10); r0 = realloc(p,0); - c0 = calloc(0); - exit(m0 == 0 || r0 == 0 || c0 == 0 ? 0 : 1); -}], + c0 = calloc(0,10); + exit((m0 == 0 || r0 == 0 || c0 == 0) ? 0 : 1); +])], [MALLOC_ZERO_RETURNS_NULL=yes], [MALLOC_ZERO_RETURNS_NULL=no], [MALLOC_ZERO_RETURNS_NULL=yes]) |