$NetBSD: patch-gtk_Makefile.in,v 1.1 2019/12/04 11:17:32 leot Exp $

Avoid gmake-isms.

XXX: Probably that's wrong and needs to be discussed with upstream!

--- gtk/Makefile.in.orig	2019-05-23 21:12:07.000000000 +0000
+++ gtk/Makefile.in
@@ -887,7 +887,7 @@ uninstall-am: uninstall-dist_girDATA uni
 
 # GObject Introspection
 
-include $(INTROSPECTION_MAKEFILE)
+include $(INTROSPECTION_MAKEFILE) # am--include-marker
 
 # This may generate some warnings, but it is needed for "make dist"
 ZBar-1.0.gir: $(lib_LTLIBRARIES)