Index: head/devel/arduino-builder/Makefile
===================================================================
--- head/devel/arduino-builder/Makefile	(revision 424483)
+++ head/devel/arduino-builder/Makefile	(revision 424484)
@@ -1,36 +1,37 @@
 # $FreeBSD$
 
 PORTNAME=	arduino-builder
 PORTVERSION=	1.3.21
-PORTREVISION=	1
+PORTREVISION=	2
 CATEGORIES=	devel
 
 MAINTAINER=	bsdports@kyle-evans.net
 COMMENT=	Command line tool for building Arduino sketches
 
 LICENSE=	GPLv2
 LICENSE_FILE=	${WRKSRC}/LICENSE.txt
 
 BUILD_DEPENDS=	go:lang/go
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	arduino
 GH_SUBDIR=	src/github.com/${GH_ACCOUNT}/${PORTNAME}
 GH_TUPLE=	go-errors:errors:a418503:goerrors/src/github.com/go-errors/errors \
 		stretchr:testify:v1.1.3:stretchr/src/github.com/stretchr/testify \
 		jstemmer:go-junit-report:833f8ea:jstemmer/src/github.com/jstemmer/go-junit-report
 
+GO_ENV+=	GOPATH=${WRKSRC}
 STRIP=		# stripping can break go binaries
 
 PLIST_FILES=	arduino/hardware/platform.keys.rewrite.txt \
 		arduino/hardware/platform.txt \
 		bin/${PORTNAME}
 
 do-build:
-	@( cd ${WRKSRC} ; ${SETENV} GOPATH=${WRKSRC} go build arduino.cc/arduino-builder )
+	@( cd ${WRKSRC} ; ${SETENV} ${GO_ENV} go build arduino.cc/arduino-builder )
 
 do-install:
 	${INSTALL_PROGRAM} ${WRKSRC}/${PORTNAME} ${STAGEDIR}${PREFIX}/bin/${PORTNAME}
 	(cd ${WRKSRC}/src/arduino.cc/builder && ${COPYTREE_SHARE} "hardware" ${STAGEDIR}${PREFIX}/arduino ${FIND_EXPR})
 
 .include <bsd.port.mk>