$NetBSD: patch-doc_pngs_Makefile.in,v 1.1 2016/12/24 10:17:50 joerg Exp $

montage errors out without some font, even if it doesn't actually end up
using it.

--- doc/pngs/Makefile.in.orig	2016-12-24 09:37:47.381222017 +0000
+++ doc/pngs/Makefile.in
@@ -489,7 +489,7 @@ f.png: bigf.png
 @HAVE_CONVERT_FALSE@	@exit 1
 
 bigf.png: $(STATICIMAGES:.png=.tiny.png)
-	$(MONTAGE) -tile x3 \
+	$(MONTAGE) -tile x3 -font ${PREFIX}/share/fonts/X11/TTF/Vera.ttf \
 		-mode Concatenate -background white -adjoin \
 		`find . -regex '.*/.*\.tiny\.png'` \
 	bigf.png