maint: update copyright

[gnulib.git] / m4 / userspec.m4

diff --git a/m4/userspec.m4 b/m4/userspec.m4
index bbf9515..99ffd0b 100644 (file)
--- a/m4/userspec.m4
+++ b/m4/userspec.m4
@@ -1,13 +1,11 @@
-# userspec.m4 serial 3
-dnl Copyright (C) 2002, 2003 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.
+# serial 11
+dnl Copyright (C) 2002-2006, 2009-2014 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.
 
+dnl Prerequisites of lib/userspec.c.
 AC_DEFUN([gl_USERSPEC],
 [
-  dnl Prerequisites of lib/userspec.c.
-  AC_CHECK_HEADERS_ONCE(sys/param.h unistd.h)
+  AC_CHECK_HEADERS_ONCE([sys/param.h])
 ])