* modules/canon-host: Add canon-host.h. Depend on getaddrinfo. Make

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

diff --git a/m4/group-member.m4 b/m4/group-member.m4
index 69498e4..d5e96c8 100644 (file)
--- a/m4/group-member.m4
+++ b/m4/group-member.m4
@@ -1,11 +1,30 @@
-#serial 2
+#serial 8
+
+# Copyright (C) 1999, 2000, 2001, 2003, 2004, 2005 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,
-  [
-    dnl Do this replacement check manually because I want the hyphen
-    dnl (not the underscore) in the filename.
-    AC_CHECK_FUNC(group_member, , [AC_LIBOBJ(group-member)])
-  ]
-)
+AC_DEFUN([gl_FUNC_GROUP_MEMBER],
+[
+  AC_LIBSOURCES([group-member.c, group-member.h])
+
+  dnl Persuade glibc <unistd.h> to declare group_member().
+  AC_REQUIRE([AC_GNU_SOURCE])
+
+  dnl Do this replacement check manually because I want the hyphen
+  dnl (not the underscore) in the filename.
+  AC_CHECK_FUNC(group_member, , [
+    AC_LIBOBJ(group-member)
+    gl_PREREQ_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])
+])