[folks] Add Make rule for generating tracker-test.vapi.

[Travis Reitter <treitter src gnome org>]

commit 47f529f3772cab9e4b59a7bb427b7a1c0964c957
Author: Travis Reitter <travis reitter collabora co uk>
Date:   Fri Jun 17 15:15:44 2011 +0100

    Add Make rule for generating tracker-test.vapi.
    
    After a maintainer-clean, Make doesn't know how to generate this file otherwise.

 tests/lib/tracker/Makefile.am |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/tests/lib/tracker/Makefile.am b/tests/lib/tracker/Makefile.am
index bb1c5cf..84d7313 100644
--- a/tests/lib/tracker/Makefile.am
+++ b/tests/lib/tracker/Makefile.am
@@ -34,6 +34,10 @@ libtracker_test_la_LIBADD = \
 	$(top_builddir)/backends/tracker/lib/libfolks-tracker.la \
 	$(NULL)
 
+# XXX: automake's Vala support should make these unnecessary
+tracker-test.vapi: libtracker_test_la_vala.stamp
+tracker-test.h: libtracker_test_la_vala.stamp
+
 dist_noinst_DATA = \
 	tracker-test.vapi \
 	$(NULL)