[libgee/0.8] Fix make distclean deleting generated C code

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 563ea03f99e92899fd9ac34167679004ac90a71c
Author: Daniel Espinosa <esodan gmail com>
Date:   Tue Dec 10 18:09:54 2013 -0600

    Fix make distclean deleting generated C code

 gee/Makefile.am |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gee/Makefile.am b/gee/Makefile.am
index c6081f2..588fb74 100644
--- a/gee/Makefile.am
+++ b/gee/Makefile.am
@@ -135,5 +135,6 @@ CLEANFILES = \
        gee-internals-0.8.vapi \
        Gee-0.8.typelib \
        Gee-0.8.gir \
+       $(libgee_0_8_la_SOURCES:.vala=.c) \
        $(NULL)