Import lang/go-bootstrap - this is a version of Go that builds natively on

OpenBSD and can be used to bootstrap later versions of Go (1.5+) that
require an existing Go compiler to build. It exists for bootstrapping
lang/go and is not intended for general use or distribution.

Discussed with sthen@, jasper@

ok jasper@

lang/go-bootstrap/Makefile

@@ -0,0 +1,103 @@
+# $OpenBSD: Makefile,v 1.1.1.1 2015/12/04 17:19:18 jsing Exp $
+
+ONLY_FOR_ARCHS =	${GO_ARCHS}
+
+COMMENT =		Go programming language
+
+VERSION =		1.4.3
+EXTRACT_SUFX =		.src.tar.gz
+DISTNAME = 		go${VERSION}
+PKGNAME = 		go-bootstrap-${VERSION}
+CATEGORIES =		lang
+
+HOMEPAGE =		https://golang.org/
+
+MAINTAINER = 		Joel Sing <jsing@openbsd.org>
+
+# software: BSD, documentation: CC-BY-3.0
+PERMIT_PACKAGE_CDROM =	bootstrap only
+PERMIT_PACKAGE_FTP =	bootstrap only
+PERMIT_DISTFILES_FTP =  bootstrap only
+
+WANTLIB =		c m pthread
+
+MASTER_SITES =		https://golang.org/dl/
+
+BUILD_DEPENDS =		shells/bash
+
+SEPARATE_BUILD =	simple
+CONFIGURE_STYLE =	None
+SUBST_VARS =		GOEXE GOCFG
+
+WRKDIST =		${WRKDIR}/go
+WRKSRC =		${WRKDIST}/src
+
+GOOS = 			openbsd
+GOARCH =		unknown
+GOROOT = 		${PREFIX}/go/bootstrap
+
+.if ${MACHINE_ARCH} == "amd64"
+GOARCH =		amd64
+EXEPREFIX =		6
+PKG_ARGS +=		-Damd64=1
+PKG_ARGS +=		-Di386=0
+.elif ${MACHINE_ARCH} == "i386"
+GOARCH =		386
+EXEPREFIX =		8
+PKG_ARGS +=		-Damd64=0
+PKG_ARGS +=		-Di386=1
+.else
+PKG_ARGS += 		-Damd64=0 -Di386=0
+.endif
+
+GOCFG =			/${GOOS}_${GOARCH}
+GOEXE =			${GOCFG}/${EXEPREFIX}
+
+do-configure:
+.	if ${GOARCH} == "unknown"
+		@echo "Unable to determine GOARCH for ${MACHINE_ARCH}."
+		@exit 1
+.	endif
+
+
+do-build:
+	@cd ${WRKSRC} && \
+		CC="${CC}" \
+		CXX="${CXX}" \
+		GOROOT=${WRKDIST} \
+		GOBIN=${WRKDIST}/bin \
+		GOROOT_FINAL=${GOROOT} ./make.bash --no-banner
+
+do-test:
+	@cd ${WRKSRC} && \
+		ulimit -n 256 -d 2097152 && \
+		PATH=${WRKDIST}/bin:${PATH} GOROOT=${WRKDIST} ./run.bash
+
+do-install:
+	${INSTALL_PROGRAM_DIR} ${GOROOT}
+
+	${INSTALL_PROGRAM_DIR} ${GOROOT}/bin
+	${INSTALL_PROGRAM} -p ${WRKDIST}/bin/go{,fmt} ${GOROOT}/bin
+
+	@cd ${WRKDIST} && \
+		find . ! -name .hg\* -type f -maxdepth 1 \
+			-exec ${INSTALL_DATA} -p {} \
+			${GOROOT} \;
+
+.	for dir in doc include lib misc src pkg
+		@cd ${WRKDIST} && \
+			find ${dir} -type d \
+				-exec ${INSTALL_DATA_DIR} \
+				${GOROOT}/{} \;
+		@cd ${WRKDIST} && \
+			find ${dir} ! -name \*.orig -type f \
+				-exec ${INSTALL_DATA} -p {} \
+				${GOROOT}/{} \;
+.	endfor
+
+	# These get installed via `find' however we need them to be executable
+	${INSTALL_PROGRAM_DIR} ${GOROOT}/pkg/tool/${GOOS}_${GOARCH}
+	${INSTALL_PROGRAM} -p ${WRKDIST}/pkg/tool/${GOOS}_${GOARCH}/* \
+		${GOROOT}/pkg/tool/${GOOS}_${GOARCH}
+
+.include <bsd.port.mk>

lang/go-bootstrap/distinfo

@@ -0,0 +1,2 @@
+SHA256 (go1.4.3.src.tar.gz) = mUf8cFsLhBtZOMSLItwz6WR+wHUrrmblAnjfTyP2SVk=
+SIZE (go1.4.3.src.tar.gz) = 10875170

lang/go-bootstrap/pkg/DESCR

@@ -0,0 +1,7 @@
+Go is an open source programming language that makes it easy to build simple,
+reliable, and efficient software.
+
+This package contains a version of Go that builds natively on OpenBSD and can
+be used to bootstrap later versions of Go (1.5+) that require an existing Go
+compiler to build. It exists for bootstrapping lang/go and is not intended for
+general use or distribution.

lang/go-bootstrap/pkg/PFRAG.amd64

@@ -0,0 +1,5 @@
+@comment $OpenBSD: PFRAG.amd64,v 1.1.1.1 2015/12/04 17:19:18 jsing Exp $
+go/bootstrap/src/runtime/zasm_openbsd_amd64.h
+go/bootstrap/src/runtime/zgoarch_amd64.go
+go/bootstrap/src/runtime/zruntime_defs_openbsd_amd64.go
+go/bootstrap/src/runtime/zsys_openbsd_amd64.s

lang/go-bootstrap/pkg/PFRAG.i386

@@ -0,0 +1,5 @@
+@comment $OpenBSD: PFRAG.i386,v 1.1.1.1 2015/12/04 17:19:18 jsing Exp $
+go/bootstrap/src/runtime/zasm_openbsd_386.h
+go/bootstrap/src/runtime/zgoarch_386.go
+go/bootstrap/src/runtime/zruntime_defs_openbsd_386.go
+go/bootstrap/src/runtime/zsys_openbsd_386.s