$NetBSD: patch-ad,v 1.1 2010/10/03 12:47:20 obache Exp $

--- Makefile.in.orig	2004-11-19 22:51:24.000000000 +0000
+++ Makefile.in
@@ -54,8 +54,12 @@ bindir = @bindir@
 mandir = @mandir@
 
 # Installation locations
-if [ ! $bindir ] ; then bindir = $(exec_prefix)/bin; fi
-if [ ! $mandir ] ; then mandir = $(prefix)/man; fi
+ifeq ($(strip $(bindir)),)
+  bindir = $(exec_prefix)/bin
+endif
+ifeq ($(strip $(mandir)),)
+  mandir = $(prefix)/man
+endif
 
 #### This is just a test---feel free to delete ###
 printdirs: