-# calloc.m4 serial 3
+# calloc.m4 serial 7
-# Copyright (C) 2004 Free Software Foundation, Inc.
-
-# This program is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2, or (at your option)
-# any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software Foundation,
-# Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+# Copyright (C) 2004, 2005, 2006, 2007 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.
# Written by Jim Meyering.
# -------------------------------------
# If `calloc (0, 0)' is properly handled, run IF-WORKS, otherwise, IF-NOT.
AC_DEFUN([_AC_FUNC_CALLOC_IF],
-[AC_REQUIRE([AC_HEADER_STDC])dnl
-AC_REQUIRE([AC_TYPE_SIZE_T])dnl
-AC_CHECK_HEADERS(stdlib.h)
+[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));])],
AC_DEFINE([calloc], [rpl_calloc],
[Define to rpl_calloc if the replacement function should be used.])])
])# AC_FUNC_CALLOC
+
+
+# gl_FUNC_CALLOC_POSIX
+# --------------------
+# Test whether 'calloc' is POSIX compliant (sets errno to ENOMEM when it
+# fails), and replace calloc if it is not.
+AC_DEFUN([gl_FUNC_CALLOC_POSIX],
+[
+ 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.])
+ else
+ AC_LIBOBJ([calloc])
+ HAVE_CALLOC_POSIX=0
+ fi
+ AC_SUBST([HAVE_CALLOC_POSIX])
+])