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#!/bin/bash
set -eu
: ${LAVA_USE_PREBUILT_BOOTSTRAP_COMPILER:="no"}
if [ "${LAVA_USE_PREBUILT_BOOTSTRAP_COMPILER}" = "yes" ]; then
: ${LAVA_URL_PREBUILT_BOOTSTRAP_COMPILER:?"No URL for bootstrap compiler"}
echo "Using existing boostrap compiler from: ${LAVA_URL_PREBUILT_BOOTSTRAP_COMPILER}"
wget -q -O go1.4.tar.bz2 ${LAVA_URL_PREBUILT_BOOTSTRAP_COMPILER}
rm -rf go1.4
tar xf go1.4.tar.bz2
else
basedir=$PWD
echo "Building bootstrap compiler"
rm -rf go1.4
git clone http://github.com/golang/go go1.4
pushd go1.4
git checkout 36f456c789da341df496f161672df618b7410d58
git checkout 36f456c789da341df496f161672df618b7410d58
git apply $basedir/dist7.patch
pushd src
CC='arm-linux-gnueabihf-gcc -static' GO_DISTFLAGS=-s GOHOSTARCH=arm GOARM=7 CGO_ENABLED=0 ./make.bash
popd
popd
fi
rm -rf go
git clone --depth=1 http://github.com/4ad/go
export GOROOT_BOOTSTRAP=$PWD/go1.4
export GOROOT_FINAL=/usr/local/go
pushd $PWD
cd go/src && ./all.bash
popd
tar -acf go.tar.gz go/{bin,src,test,api,pkg}
tar -C /usr/local -axf go.tar.gz && /usr/local/go/bin/go env
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