strnlen: Fix warning in C++ mode on MacOS X.

[gnulib.git] / m4 / strnlen.m4

diff --git a/m4/strnlen.m4 b/m4/strnlen.m4
index cd48948..fabce50 100644 (file)
--- a/m4/strnlen.m4
+++ b/m4/strnlen.m4
@@ -1,4 +1,4 @@
-# strnlen.m4 serial 10
+# strnlen.m4 serial 11
 dnl Copyright (C) 2002-2003, 2005-2007, 2009-2010 Free Software Foundation,
 dnl Inc.
 dnl This file is free software; the Free Software Foundation
@@ -7,10 +7,11 @@ dnl with or without modifications, as long as this notice is preserved.
 
 AC_DEFUN([gl_FUNC_STRNLEN],
 [
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+
   dnl Persuade glibc <string.h> to declare strnlen().
   AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
-  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
   AC_CHECK_DECLS_ONCE([strnlen])
   if test $ac_cv_have_decl_strnlen = no; then
     HAVE_DECL_STRNLEN=0
@@ -18,12 +19,11 @@ AC_DEFUN([gl_FUNC_STRNLEN],
 
   AC_FUNC_STRNLEN
   if test $ac_cv_func_strnlen_working = no; then
+    REPLACE_STRNLEN=1
     # This is necessary because automake-1.6.1 doesn't understand
     # that the above use of AC_FUNC_STRNLEN means we may have to use
     # lib/strnlen.c.
     #AC_LIBOBJ([strnlen])
-    AC_DEFINE([strnlen], [rpl_strnlen],
-      [Define to rpl_strnlen if the replacement function should be used.])
     gl_PREREQ_STRNLEN
   fi
 ])