[gnome-software] trivial: Fix make distcheck

[Richard Hughes <rhughes src gnome org>]

commit 772acfe8eb0578547916ad2228d8afc04d582323
Author: Richard Hughes <richard hughsie com>
Date:   Sat Oct 5 09:59:16 2013 +0100

    trivial: Fix make distcheck

 src/Makefile.am |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index a45dd21..b6a4df6 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -115,9 +115,11 @@ check_PROGRAMS =                                           \
 gs_self_test_SOURCES =                                         \
        gs-app.c                                                \
        gs-category.c                                           \
-       gs-plugin.c                                             \
-       gs-plugin-loader.c                                      \
        gs-plugin-loader-sync.c                                 \
+       gs-plugin-loader.c                                      \
+       gs-plugin.c                                             \
+       gs-profile.c                                            \
+       gs-screenshot.c                                         \
        gs-self-test.c
 
 gs_self_test_LDADD =                                           \