$NetBSD: patch-deps__erlang_js__c_src__Makefile,v 1.3 2014/11/27 10:35:46 fhajny Exp $

pkgsrc will pass PATCH as needed.
--- deps/erlang_js/c_src/Makefile.orig	2014-04-11 20:39:20.000000000 +0000
+++ deps/erlang_js/c_src/Makefile
@@ -7,12 +7,6 @@ GUNZIP		?= gunzip
 SMONKEY_VER	:= 1.8.0-rc1
 NSPR_VER	:= 4.8
 
-ifeq ($(UNAME),SunOS)
-	PATCH	?= gpatch
-else
-	PATCH	?= patch
-endif
-
 SYSTEM_DIR := $(CURDIR)/system
 LIB_DIR    := $(SYSTEM_DIR)/lib
 INC_DIR    := $(SYSTEM_DIR)/include