X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fstrndup.m4;h=1be2a85c5e6c53ab065c1669784b806828efc77e;hb=3b8caead4388d424884b49c791a2e85d7750623f;hp=180ad203ec83f48ff2b5c8323828ca1fe74aff77;hpb=901bc47c9a8db854db97bb28780352748020c81d;p=gnulib.git

diff --git a/m4/strndup.m4 b/m4/strndup.m4
index 180ad203e..1be2a85c5 100644
--- a/m4/strndup.m4
+++ b/m4/strndup.m4
@@ -1,5 +1,5 @@
-# strndup.m4 serial 8
-dnl Copyright (C) 2002-2003, 2005-2006 Free Software Foundation, Inc.
+# strndup.m4 serial 15
+dnl Copyright (C) 2002-2003, 2005-2008 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.
@@ -7,14 +7,19 @@ dnl with or without modifications, as long as this notice is preserved.
 AC_DEFUN([gl_FUNC_STRNDUP],
 [
   dnl Persuade glibc <string.h> to declare strndup().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_CHECK_DECLS_ONCE([strndup])
+  if test $ac_cv_have_decl_strndup = no; then
+    HAVE_DECL_STRNDUP=0
+  fi
 
   # AIX 4.3.3, AIX 5.1 have a function that fails to add the terminating '\0'.
   AC_CACHE_CHECK([for working strndup], gl_cv_func_strndup,
     [AC_RUN_IFELSE([
-       AC_LANG_PROGRAM([#include <string.h>], [[
+       AC_LANG_PROGRAM([[#include <string.h>
+			 #include <stdlib.h>]], [[
 #ifndef HAVE_DECL_STRNDUP
   extern char *strndup (const char *, size_t);
 #endif
@@ -38,9 +43,8 @@ AC_DEFUN([gl_FUNC_STRNDUP],
     AC_DEFINE([HAVE_STRNDUP], 1,
       [Define if you have the strndup() function and it works.])
   else
+    HAVE_STRNDUP=0
     AC_LIBOBJ([strndup])
-    AC_DEFINE(strndup, rpl_strndup,
-      [Define to rpl_strndup if the replacement function should be used,])
     gl_PREREQ_STRNDUP
   fi
 ])