[gcr] configure: Use subdir-objects to shut up automake 1.14

[Stefan Walter <stefw src gnome org>]

commit 0d180c6e3d6f6d86b7754f90ca8faba205393f71
Author: Stef Walter <stefw gnome org>
Date:   Tue Sep 9 12:21:55 2014 +0200

    configure: Use subdir-objects to shut up automake 1.14

 configure.ac |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 7aecf1b..ee05920 100644
--- a/configure.ac
+++ b/configure.ac
@@ -48,7 +48,7 @@ dnl ****************************************************************************
 
 AC_CONFIG_MACRO_DIR([build/m4])
 AC_CONFIG_AUX_DIR([build])
-AM_INIT_AUTOMAKE([1.11 tar-ustar foreign -Wno-portability])
+AM_INIT_AUTOMAKE([1.11 tar-ustar foreign -Wno-portability subdir-objects])
 AM_SANITY_CHECK
 AC_CONFIG_HEADERS(config.h)
 m4_ifdef([AM_SILENT_RULES], [AM_SILENT_RULES([yes])])