[gtk+/gtk-3-22] gtk-demo/Makefile: Really get deps of C GResource

[Daniel Boles <dboles src gnome org>]

commit 142185523420b2d72ef98ff1826db73b39221ada
Author: Daniel Boles <dboles src gnome org>
Date:   Thu Sep 14 18:24:25 2017 +0100

    gtk-demo/Makefile: Really get deps of C GResource
    
    The XML resides in $(srcdir), not $(builddir); it is not a built source.
    Using the latter, changes to the referenced files did not cause rebuild.

 demos/gtk-demo/Makefile.am |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/demos/gtk-demo/Makefile.am b/demos/gtk-demo/Makefile.am
index e3b7ff2..261d555 100644
--- a/demos/gtk-demo/Makefile.am
+++ b/demos/gtk-demo/Makefile.am
@@ -153,7 +153,7 @@ gtk3_demo_application_SOURCES = \
 
 gtk3_demo_application_LDADD = $(LDADDS)
 
-resource_files = $(shell $(GLIB_COMPILE_RESOURCES) --sourcedir=$(srcdir) --generate-dependencies 
$(builddir)/demo.gresource.xml)
+resource_files = $(shell $(GLIB_COMPILE_RESOURCES) --sourcedir=$(srcdir) --generate-dependencies 
$(srcdir)/demo.gresource.xml)
 
 demo_resources.c: demo.gresource.xml $(resource_files)
        $(AM_V_GEN) $(GLIB_COMPILE_RESOURCES) --target=$@ --sourcedir=$(srcdir) --generate-source 
$(srcdir)/demo.gresource.xml