[gnome-builder] build: define log domain for vala pack

[Christian Hergert <chergert src gnome org>]

commit 0350fb7860a57979de48b79f58a60727289fa438
Author: Christian Hergert <christian hergert me>
Date:   Tue Sep 29 15:40:24 2015 -0700

    build: define log domain for vala pack

 plugins/vala-pack/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/plugins/vala-pack/Makefile.am b/plugins/vala-pack/Makefile.am
index a7caeaa..4a67e08 100644
--- a/plugins/vala-pack/Makefile.am
+++ b/plugins/vala-pack/Makefile.am
@@ -34,6 +34,7 @@ libvala_pack_plugin_la_VALAFLAGS = \
        $(NULL)
 
 libvala_pack_plugin_la_CFLAGS = \
+       -DG_LOG_DOMAIN=\"vala-pack-plugin\" \
        $(BUILDER_CFLAGS) \
        $(VALA_CFLAGS) \
        -I$(top_srcdir)/libide \