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#serial 1
dnl From Jim Meyering.
dnl Determine whether realloc accepts 0 as its first argument.
dnl If it doesn't, arrange to use the replacement function.
dnl
dnl If you use this macro in a package, you should
dnl add the following two lines to acconfig.h:
dnl /* Define to rpl_realloc if the replacement function should be used. */
dnl #undef realloc
dnl
AC_DEFUN(jm_FUNC_REALLOC,
[
AC_CACHE_CHECK([for working realloc], jm_cv_func_working_realloc,
[AC_TRY_RUN([
char *realloc ();
int
main ()
{
exit (realloc (0, 1) ? 0 : 1);
}
],
jm_cv_func_working_realloc=yes,
jm_cv_func_working_realloc=no,
dnl When crosscompiling, assume realloc is broken.
jm_cv_func_working_realloc=no)
])
if test $jm_cv_func_working_realloc = no; then
LIBOBJS="$LIBOBJS realloc.o"
AC_DEFINE_UNQUOTED(realloc, rpl_realloc)
fi
])
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