Gavin Smith wrote:
> * AC_HEADER_STDC in realloc.m4 and malloc.m4
Fixed like this. We're assuming that <stdlib.h> exists, already since
2002-11-22.
2020-09-27 Bruno Haible <br...@clisp.org>
Avoid "warning: The macro `AC_HEADER_STDC' is obsolete".
Reported by Gavin Smith <gavinsmith0...@gmail.com> in
<https://lists.gnu.org/archive/html/bug-gnulib/2020-09/msg00154.html>.
Based on a patch by Paul Eggert.
* m4/malloc.m4 (_AC_FUNC_MALLOC_IF): Don't require AC_HEADER_STDC. Don't
test STDC_HEADERS. Assume <stdlib.h> exists.
* m4/realloc.m4 (_AC_FUNC_REALLOC_IF): Likewise.
diff --git a/m4/malloc.m4 b/m4/malloc.m4
index c1f8ea3..3823566 100644
--- a/m4/malloc.m4
+++ b/m4/malloc.m4
@@ -1,4 +1,4 @@
-# malloc.m4 serial 20
+# malloc.m4 serial 21
dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -8,18 +8,12 @@ dnl with or without modifications, as long as this notice is
preserved.
#
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c
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
+ [[#include <stdlib.h>
]],
[[char *p = malloc (0);
int result = !p;
diff --git a/m4/realloc.m4 b/m4/realloc.m4
index 85b8f87..53967f4 100644
--- a/m4/realloc.m4
+++ b/m4/realloc.m4
@@ -1,4 +1,4 @@
-# realloc.m4 serial 18
+# realloc.m4 serial 19
dnl Copyright (C) 2007, 2009-2020 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
@@ -8,18 +8,12 @@ dnl with or without modifications, as long as this notice is
preserved.
#
https://git.savannah.gnu.org/cgit/autoconf.git/commit/?id=04be2b7a29d65d9a08e64e8e56e594c91749598c
AC_DEFUN([_AC_FUNC_REALLOC_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 realloc],
[ac_cv_func_realloc_0_nonnull],
[AC_RUN_IFELSE(
[AC_LANG_PROGRAM(
- [[#if defined STDC_HEADERS || defined HAVE_STDLIB_H
- # include <stdlib.h>
- #else
- char *realloc ();
- #endif
+ [[#include <stdlib.h>
]],
[[char *p = realloc (0, 0);
int result = !p;
