Doc tweak.

[gnulib.git] / m4 / calloc.m4

diff --git a/m4/calloc.m4 b/m4/calloc.m4
index 3432493..b282067 100644 (file)
--- a/m4/calloc.m4
+++ b/m4/calloc.m4
@@ -1,6 +1,6 @@
-# calloc.m4 serial 7
+# calloc.m4 serial 8
 
-# Copyright (C) 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
+# Copyright (C) 2004-2008 Free Software Foundation, Inc.
 # This file is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
@@ -19,7 +19,7 @@ AC_DEFUN([_AC_FUNC_CALLOC_IF],
 [AC_REQUIRE([AC_TYPE_SIZE_T])dnl
 AC_CACHE_CHECK([for GNU libc compatible calloc], ac_cv_func_calloc_0_nonnull,
 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
-                 [exit (!calloc (0, 0) || calloc ((size_t) -1 / 8 + 1, 8));])],
+                 [[exit (!calloc (0, 0) || calloc ((size_t) -1 / 8 + 1, 8));]])],
               [ac_cv_func_calloc_0_nonnull=yes],
               [ac_cv_func_calloc_0_nonnull=no],
               [ac_cv_func_calloc_0_nonnull=no])])
@@ -49,19 +49,8 @@ AC_DEFUN([AC_FUNC_CALLOC],
 # fails), and replace calloc if it is not.
 AC_DEFUN([gl_FUNC_CALLOC_POSIX],
 [
-  AC_CACHE_CHECK([whether calloc is POSIX compliant],
-    [gl_cv_func_calloc_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_calloc_posix=yes], [gl_cv_func_calloc_posix=no])
-    ])
-  if test $gl_cv_func_calloc_posix = yes; then
+  AC_REQUIRE([gl_CHECK_MALLOC_POSIX])
+  if test $gl_cv_func_malloc_posix = yes; then
     HAVE_CALLOC_POSIX=1
     AC_DEFINE([HAVE_CALLOC_POSIX], 1,
       [Define if the 'calloc' function is POSIX compliant.])