$NetBSD: patch-SP_Makefile,v 1.1 2019/11/17 17:56:48 nia Exp $

Always call it x86_64 regardless of operating system.

--- SP/Makefile.orig	2019-03-16 18:09:48.000000000 +0000
+++ SP/Makefile
@@ -750,7 +750,6 @@ ifneq (,$(findstring "$(PLATFORM)", "fre
   ifeq ($(ARCH),x86_64)
     OPTIMIZEVM = -O3
     OPTIMIZE = $(OPTIMIZEVM) -ffast-math
-    FILE_ARCH = amd64
   endif
   ifeq ($(ARCH),x86)
     OPTIMIZEVM = -O3 -march=i586
