diff options
Diffstat (limited to 'crypto/heimdal/cf/broken-realloc.m4')
| -rw-r--r-- | crypto/heimdal/cf/broken-realloc.m4 | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/crypto/heimdal/cf/broken-realloc.m4 b/crypto/heimdal/cf/broken-realloc.m4 new file mode 100644 index 0000000..1569255 --- /dev/null +++ b/crypto/heimdal/cf/broken-realloc.m4 @@ -0,0 +1,26 @@ +dnl +dnl $Id: broken-realloc.m4,v 1.1 2000/07/15 18:05:36 joda Exp $ +dnl +dnl Test for realloc that doesn't handle NULL as first parameter +dnl +AC_DEFUN(rk_BROKEN_REALLOC, [ +AC_CACHE_CHECK(if realloc if broken, ac_cv_func_realloc_broken, [ +ac_cv_func_realloc_broken=no +AC_TRY_RUN([ +#include <stddef.h> +#include <stdlib.h> + +int main() +{ + return realloc(NULL, 17) == NULL; +} +],:, ac_cv_func_realloc_broken=yes, :) +]) +if test "$ac_cv_func_realloc_broken" = yes ; then + AC_DEFINE(BROKEN_REALLOC, 1, [Define if realloc(NULL) doesn't work.]) +fi +AH_BOTTOM([#ifdef BROKEN_REALLOC +#define realloc(X, Y) isoc_realloc((X), (Y)) +#define isoc_realloc(X, Y) ((X) ? realloc((X), (Y)) : malloc(Y)) +#endif]) +]) |
