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-rw-r--r--m4/realloc.m49
1 files changed, 5 insertions, 4 deletions
diff --git a/m4/realloc.m4 b/m4/realloc.m4
index 2605391..a59af28 100644
--- a/m4/realloc.m4
+++ b/m4/realloc.m4
@@ -1,5 +1,5 @@
-# realloc.m4 serial 27
-dnl Copyright (C) 2007, 2009-2023 Free Software Foundation, Inc.
+# realloc.m4 serial 29
+dnl Copyright (C) 2007, 2009-2024 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.
@@ -16,7 +16,8 @@ AC_DEFUN([_AC_FUNC_REALLOC_IF],
[[#include <stdlib.h>
]],
[[void *p = realloc (0, 0);
- int result = !p;
+ void * volatile vp = p;
+ int result = !vp;
free (p);
return result;]])
],
@@ -26,7 +27,7 @@ AC_DEFUN([_AC_FUNC_REALLOC_IF],
# Guess yes on platforms where we know the result.
*-gnu* | freebsd* | netbsd* | openbsd* | bitrig* \
| gnu* | *-musl* | midipix* | midnightbsd* \
- | hpux* | solaris* | cygwin* | mingw* | msys* )
+ | hpux* | solaris* | cygwin* | mingw* | windows* | msys* )
ac_cv_func_realloc_0_nonnull="guessing yes" ;;
# If we don't know, obey --enable-cross-guesses.
*) ac_cv_func_realloc_0_nonnull="$gl_cross_guess_normal" ;;