X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fmemrchr.m4;h=69674ff4183ff439fb21f6fcd821d15e25c19e3d;hb=876405426e971f914da0645ea9f3810ad62ef667;hp=06a9b1ee7ec76d1a40ce92f3f084e8e5e54ac88f;hpb=44d7c1c1f004fa9bfb8ec3948de2671a7958cf5b;p=gnulib.git

diff --git a/m4/memrchr.m4 b/m4/memrchr.m4
index 06a9b1ee7..69674ff41 100644
--- a/m4/memrchr.m4
+++ b/m4/memrchr.m4
@@ -1,5 +1,5 @@
-# memrchr.m4 serial 3
-dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+# memrchr.m4 serial 7
+dnl Copyright (C) 2002, 2003, 2005, 2006, 2007 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.
@@ -9,6 +9,12 @@ AC_DEFUN([gl_FUNC_MEMRCHR],
   dnl Persuade glibc <string.h> to declare memrchr().
   AC_REQUIRE([AC_GNU_SOURCE])
 
+  AC_REQUIRE([gl_HEADER_STRING_H_DEFAULTS])
+  AC_CHECK_DECLS_ONCE([memrchr])
+  if test $ac_cv_have_decl_memrchr = no; then
+    HAVE_DECL_MEMRCHR=0
+  fi
+
   AC_REPLACE_FUNCS(memrchr)
   if test $ac_cv_func_memrchr = no; then
     gl_PREREQ_MEMRCHR