$OpenBSD: patch-WPrefs_app_Makefile_in,v 1.1 2016/06/17 11:49:33 dcoppa Exp $
--- WPrefs.app/Makefile.in.orig	Tue Aug 11 20:52:19 2015
+++ WPrefs.app/Makefile.in	Wed Jun  8 10:03:29 2016
@@ -455,6 +455,7 @@ WPrefs_SOURCES = \
 #	Themes.c
 AM_CFLAGS = 
 AM_CPPFLAGS = -DRESOURCE_PATH=\"$(wpdatadir)\" -DWMAKER_RESOURCE_PATH=\"$(pkgdatadir)\" \
+	 -DPREFIX=\"$(prefix)\" \
 	 -I$(top_srcdir)/wrlib -I$(top_srcdir)/WINGs @HEADER_SEARCH_PATH@ 
 
 WPrefs_DEPENDENCIES = $(top_builddir)/WINGs/libWINGs.la
