[gnome-builder] vala-pack: regenerate sources when makefile changes

[Christian Hergert <chergert src gnome org>]

commit 1222c2b8d826d8e6bc9b21f920130ca3e42e0650
Author: Christian Hergert <chergert redhat com>
Date:   Sat Mar 11 02:45:43 2017 -0800

    vala-pack: regenerate sources when makefile changes
    
    We need this so that vala sources are rebuilt when the project is
    reconfigured. It should help the vala auto-builders find errors sooner
    and prevent future breakages.

 plugins/vala-pack/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/plugins/vala-pack/Makefile.am b/plugins/vala-pack/Makefile.am
index b7aa46d..1ca88ac 100644
--- a/plugins/vala-pack/Makefile.am
+++ b/plugins/vala-pack/Makefile.am
@@ -17,7 +17,7 @@ dist_plugin_DATA = vala-pack.plugin
 
 BUILT_SOURCES = libvala_pack_plugin_la_vala.stamp
 
-libvala_pack_plugin_la_vala.stamp: $(libvala_pack_plugin_la_VALASOURCES)
+libvala_pack_plugin_la_vala.stamp: $(libvala_pack_plugin_la_VALASOURCES) Makefile
        $(AM_V_GEN)$(VALAC)                                                   \
                $(libvala_pack_plugin_la_VALAFLAGS)                           \
                $(addprefix $(srcdir)/,$(libvala_pack_plugin_la_VALASOURCES)) \