Use modern idiom for malloc() replacement.

[gnulib.git] / m4 / realloc.m4

diff --git a/m4/realloc.m4 b/m4/realloc.m4
index c00f047..dc30235 100644 (file)
--- a/m4/realloc.m4
+++ b/m4/realloc.m4
@@ -1,30 +1,19 @@
-# realloc.m4 serial 8
-dnl Copyright (C) 2007 Free Software Foundation, Inc.
+# realloc.m4 serial 9
+dnl Copyright (C) 2007, 2009, 2010 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.
 
 # gl_FUNC_REALLOC_POSIX
-# --------------------
+# ---------------------
 # Test whether 'realloc' is POSIX compliant (sets errno to ENOMEM when it
 # fails), and replace realloc if it is not.
 AC_DEFUN([gl_FUNC_REALLOC_POSIX],
 [
-  AC_CACHE_CHECK([whether malloc, realloc, calloc are POSIX compliant],
-    [gl_cv_func_malloc_posix],
-    [
-      dnl It is too dangerous to try to allocate a large amount of memory:
-      dnl some systems go to their knees when you do that. So assume that
-      dnl all Unix implementations of the function are POSIX compliant.
-      AC_TRY_COMPILE([],
-        [#if !((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
-         choke me
-         #endif
-        ], [gl_cv_func_malloc_posix=yes], [gl_cv_func_malloc_posix=no])
-    ])
+  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
   if test $gl_cv_func_malloc_posix = yes; then
     HAVE_REALLOC_POSIX=1
-    AC_DEFINE([HAVE_REALLOC_POSIX], 1,
+    AC_DEFINE([HAVE_REALLOC_POSIX], [1],
       [Define if the 'realloc' function is POSIX compliant.])
   else
     AC_LIBOBJ([realloc])