--- libnatpmp-20150609/Makefile.orig	2013-12-09 21:52:28.000000000 +0100
+++ libnatpmp-20150609/Makefile	2017-08-01 15:10:21.711231906 +0200
@@ -62,7 +62,7 @@
 
 INSTALLPREFIX ?= $(PREFIX)/usr
 INSTALLDIRINC = $(INSTALLPREFIX)/include
-INSTALLDIRLIB = $(INSTALLPREFIX)/lib
+INSTALLDIRLIB = $(INSTALLPREFIX)/lib@@LIBDIRSUFFIX@@
 INSTALLDIRBIN = $(INSTALLPREFIX)/bin
 
 JAVA ?= java