[gdm] autogoo: add foreign to AC_INIT

[Ray Strode <halfline src gnome org>]

commit 97f94ba97a9f620222e03ee39d48d3d8a09aa6ef
Author: Ray Strode <rstrode redhat com>
Date:   Mon Jul 23 14:06:56 2018 -0400

    autogoo: add foreign to AC_INIT
    
    autogoo is still oozing from the docs changes, try again to plug
    up the holes and fix the build.

 configure.ac | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/configure.ac b/configure.ac
index 9ed1878b..d16ba6ac 100644
--- a/configure.ac
+++ b/configure.ac
@@ -6,7 +6,7 @@ AC_INIT([gdm],
 
 AC_CONFIG_SRCDIR([daemon/gdm-manager.c])
 
-AM_INIT_AUTOMAKE([1.11.2 no-dist-gzip dist-xz tar-ustar -Wall])
+AM_INIT_AUTOMAKE([1.11.2 no-dist-gzip dist-xz tar-ustar -Wall foreign])
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])
 AM_MAINTAINER_MODE([enable])