# SliTaz package receipt.

PACKAGE="go"
VERSION="1.2.1"
CATEGORY="development"
SHORT_DESC="The Go programming language (R.Griesemer R.Pike K.Thompson)"
MAINTAINER="domcox@slitaz.org"
LICENSE="BSD"
WEB_SITE="https://golang.org/"
TARBALL="$PACKAGE$VERSION.src.tar.gz"
WGET_URL="https://github.com/golang/go/archive/go$VERSION.tar.gz"
TAGS="go"

DEPENDS=""
BUILD_DEPENDS="bash bison make ed wget"

current_version()
{
	wget -O - https://golang.org/dl 2>/dev/null | \
	sed '/go[0-9]/!d;/src/!d;s|.*/dl/go\(.*\).src.*".*|\1|;q'
}

# Rules to configure and make the package.
compile_rules()
{
	sed -i 's|gohostarch = "amd64"|gohostarch = "386"|' src/cmd/dist/unix.c
	cd $src/src

	# Setting up environnment before building go.
	# For more information, see: http://golang.org/doc/install/source

	# Go tree, binaries and scripts locations.
	export GOROOT_FINAL=/usr/lib/go

	# Support all x86 chips (Pentium MMX or later)
	# or optionaly only Pentium 4/Opteron/Athlon 64 or later.
	export GO386=387	# Pentium MMX or later
	# export GO386=sse2	# Pentium 4/Opteron/Athlon 64 or later

	# Target operating system (optional).
	export GOOS=linux

	# Target compilation architecture.
	case $ARCH in
		x86_64)
			# A mature implementation. The compiler has an effective optimizer
			# (registerizer) and generates good code (although gccgo can do
			# noticeably better sometimes).
			export GOARCH="amd64" ;;

		i486)
			# Comparable to the amd64
			export GOARCH="386" ;;

		arm)
			# Supports Linux, FreeBSD and NetBSD binaries. Less widely used
			# than the other ports.
			export GOARCH="arm"
			# ARM11 (VFPv1) or better cores + cross-compiling.
			export GOARM=6 ;;
	esac

	# Build go
	/bin/bash make.bash --no-banner
}

# Rules to gen a SliTaz package suitable for Tazpkg.
genpkg_rules()
{
	mkdir -p $fs/usr/lib/go/src
	# bin
	cp -a $src/bin $fs/usr
	# go tree
	cp -a $src/pkg $fs/usr/lib/go
	# lib
	cp -a $src/lib $fs/usr/lib/go
	# include
	cp -a $src/include $fs/usr/lib/go
	# pkg
	cp -a $src/src/pkg $fs/usr/lib/go/src
	cp -a $src/src/cmd $fs/usr/lib/go/src
	cp -a $src/src/lib9 $fs/usr/lib/go/src
}