maint: update copyright

[gnulib.git] / m4 / same.m4

diff --git a/m4/same.m4 b/m4/same.m4
index 8a0870a..cb63894 100644 (file)
--- a/m4/same.m4
+++ b/m4/same.m4
@@ -1,12 +1,13 @@
-# same.m4 serial 3
-dnl Copyright (C) 2002, 2003 Free Software Foundation, Inc.
+#serial 9
+dnl Copyright (C) 2002-2003, 2005-2006, 2009-2014 Free Software Foundation,
+dnl 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.
 
+dnl Prerequisites of lib/same.c.
 AC_DEFUN([gl_SAME],
 [
-  dnl Prerequisites of lib/same.c.
-  AC_CHECK_HEADERS_ONCE(unistd.h)
-  AC_CHECK_FUNCS(pathconf)
+  AC_REQUIRE([AC_SYS_LONG_FILE_NAMES])
+  AC_CHECK_FUNCS_ONCE([pathconf])
 ])