$OpenBSD: patch-Makefile,v 1.7 2015/07/18 21:25:12 sthen Exp $
--- Makefile.orig	Mon Jun 29 03:48:37 2015
+++ Makefile	Sat Jul 18 15:17:37 2015
@@ -81,7 +81,7 @@ clean:
 
 #------------------------------------------------------------------------
 #make install is validated only for Linux, OSX, kFreeBSD and Hurd targets
-ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU))
+ifneq (,$(filter $(shell uname),Linux Darwin GNU/kFreeBSD GNU OpenBSD))
 
 install:
 	@cd $(LZ4DIR); $(MAKE) -e install
