$NetBSD$

--- gozilla/Makefile.am.orig	2014-11-26 02:49:36.000000000 +0000
+++ gozilla/Makefile.am
@@ -25,5 +25,5 @@ EXTRA_DIST = $(man_MANS) const.h manual.
 # for osx-default
 gtagsdir = ${localstatedir}/gtags
 install-data-hook:
-	mkdir -p ${gtagsdir}
-	chmod 777 ${gtagsdir}
+	mkdir -p ${DESTDIR}${gtagsdir}
+	chmod 777 ${DESTDIR}${gtagsdir}