[gnome-boxes] build: add missing libcommon.h generation rule

[Christophe Fergeau <teuf src gnome org>]

commit 03f7b1392d6b9e0c6e154fd8632515ebe2a02e44
Author: Christophe Fergeau <cfergeau redhat com>
Date:   Tue Aug 14 11:56:14 2012 +0200

    build: add missing libcommon.h generation rule
    
    libcommon.h was generated at the same time as common.vapi, but
    this was not reflected in the Makefile.am rule. This caused
    parallel builds to fail on clean git clones as make was looking for
    libcommon.h before it was generated.

 src/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index c0f13a5..23f8767 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -55,7 +55,7 @@ libcommon_a_SOURCES =				\
 
 libcommon_a_CFLAGS = $(BOXES_COMMON_CFLAGS)
 
-libcommon_vala.stamp common.vapi: $(libcommon_a_VALASOURCES)
+libcommon_vala.stamp common.vapi libcommon.h: $(libcommon_a_VALASOURCES)
 	$(AM_V_VALAC)$(VALAC) $(VALAFLAGS) $(VALA_DEBUG_FLAGS)	\
 	--enable-experimental					\
 	--vapidir=$(srcdir)/					\