Doc tweak.

[gnulib.git] / m4 / group-member.m4

diff --git a/m4/group-member.m4 b/m4/group-member.m4
index bfef480..5671491 100644 (file)
--- a/m4/group-member.m4
+++ b/m4/group-member.m4
@@ -1,11 +1,18 @@
-#serial 5
+#serial 11
+
+# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005, 2006, 2007 Free Software
+# Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
 
 dnl Written by Jim Meyering
 
-AC_DEFUN([jm_FUNC_GROUP_MEMBER],
+AC_DEFUN([gl_FUNC_GROUP_MEMBER],
 [
   dnl Persuade glibc <unistd.h> to declare group_member().
-  AC_REQUIRE([AC_GNU_SOURCE])
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
 
   dnl Do this replacement check manually because I want the hyphen
   dnl (not the underscore) in the filename.
@@ -18,6 +25,5 @@ AC_DEFUN([jm_FUNC_GROUP_MEMBER],
 # Prerequisites of lib/group-member.c.
 AC_DEFUN([gl_PREREQ_GROUP_MEMBER],
 [
-  AC_CHECK_HEADERS_ONCE(unistd.h)
   AC_REQUIRE([AC_FUNC_GETGROUPS])
 ])