[gtk+] wayland: Fix make dist

[Rico Tzschichholz <ricotz src gnome org>]

commit 13e843b7d745584c5d70b92b5d7001634c5eed36
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Sep 11 17:20:55 2013 +0200

    wayland: Fix make dist
    
    In addition to d34335e51c98efebe010bd4a202fe2a4b2fb7d06

 gdk/wayland/Makefile.am |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/gdk/wayland/Makefile.am b/gdk/wayland/Makefile.am
index be32a74..6896bff 100644
--- a/gdk/wayland/Makefile.am
+++ b/gdk/wayland/Makefile.am
@@ -48,11 +48,11 @@ libgdkwaylandinclude_HEADERS =                      \
        gdkwaylandselection.h                   \
        gdkwaylandwindow.h
 
-%-protocol.c : protocol/%.xml
+%-protocol.c : $(srcdir)/protocol/%.xml
        $(AM_V_GEN)$(WAYLAND_SCANNER) code < $< > $@
-%-server-protocol.h : protocol/%.xml
+%-server-protocol.h : $(srcdir)/protocol/%.xml
        $(AM_V_GEN)$(WAYLAND_SCANNER) server-header < $< > $@
-%-client-protocol.h : protocol/%.xml
+%-client-protocol.h : $(srcdir)/protocol/%.xml
        $(AM_V_GEN)$(WAYLAND_SCANNER) client-header < $< > $@
 
 EXTRA_DIST += protocol/gtk-shell.xml