Make it possible to use a locally augmented gnulib.

[gnulib.git] / m4 / strnlen.m4

diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
index e6af315..67964c8 100644 (file)
--- a/m4/strnlen.m4
+++ b/m4/strnlen.m4
@@ -1,11 +1,13 @@
-# strnlen.m4 serial 4
-dnl Copyright (C) 2002-2003 Free Software Foundation, Inc.
+# strnlen.m4 serial 5
+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_STRNLEN],
 [
+  AC_LIBSOURCES([strnlen.c, strnlen.h])
+
   dnl Persuade glibc <string.h> to declare strnlen().
   AC_REQUIRE([AC_GNU_SOURCE])
 
@@ -22,4 +24,6 @@ AC_DEFUN([gl_FUNC_STRNLEN],
 ])
 
 # Prerequisites of lib/strnlen.c.
-AC_DEFUN([gl_PREREQ_STRNLEN], [:])
+AC_DEFUN([gl_PREREQ_STRNLEN], [
+  AC_CHECK_DECLS_ONCE(strnlen)
+])