* lib-ignore.m4 (gl_IGNORE_UNUSED_LIBRARIES): Don't use ldd, as

[gnulib.git] / m4 / memrchr.m4

diff --git a/m4/memrchr.m4 b/m4/memrchr.m4
index c489ec3..e2406ec 100644 (file)
--- a/m4/memrchr.m4
+++ b/m4/memrchr.m4
@@ -1,16 +1,18 @@
-# memrchr.m4 serial 1
-dnl Copyright (C) 2002 Free Software Foundation, Inc.
-dnl This file is free software, distributed under the terms of the GNU
-dnl General Public License.  As a special exception to the GNU General
-dnl Public License, this file may be distributed as part of a program
-dnl that contains a configuration script generated by Autoconf, under
-dnl the same distribution terms as the rest of that program.
+# memrchr.m4 serial 4
+dnl Copyright (C) 2002, 2003, 2005 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.
 
 AC_DEFUN([gl_FUNC_MEMRCHR],
 [
+  AC_LIBSOURCES([memrchr.c, memrchr.h])
+
   dnl Persuade glibc <string.h> to declare memrchr().
   AC_REQUIRE([AC_GNU_SOURCE])
 
+  AC_CHECK_DECLS_ONCE([memrchr])
+
   AC_REPLACE_FUNCS(memrchr)
   if test $ac_cv_func_memrchr = no; then
     gl_PREREQ_MEMRCHR
@@ -18,6 +20,4 @@ AC_DEFUN([gl_FUNC_MEMRCHR],
 ])
 
 # Prerequisites of lib/memrchr.c.
-AC_DEFUN([gl_PREREQ_MEMRCHR], [
-  AC_CHECK_HEADERS_ONCE(limits.h)
-])
+AC_DEFUN([gl_PREREQ_MEMRCHR], [:])