ref: 23520cdd0314a2ea171ce8a7c1047fbd805a7e83
dir: /building-go.md/
Building Go from source === First we'll need a suitable location for our 'GOROOT', the standard convention is to place it in '/sys/lib/go/$objtype-$version'. mkdir -p /sys/lib/go cd /sys/lib/go hget https://golang.org/dl/go1.15.2.src.tar.gz | gunzip -c | tar x mv go amd64-1.15.2 If you don't already have some version of Go installed it's best to grab a bootstrap tarball built by the 9legacy folks: hget http://www.9legacy.org/download/go/go1.14.1-plan9-amd64-bootstrap.tbz | bunzip2 -c | tar x If you have an existing install you can use that instead of the 9legacy bootstraps. There may be some hiccups when there are large version distances between a bootstrap and desired build version. It is best to use to the latest bootstrap when possible and some intermediate builds may be required depending on the age of the bootstrap. Next we'll need to configure both 'GOROOT' and 'GOROOT_BOOTSTRAP' GOROOT_BOOTSTRAP=/sys/lib/go/go-plan9-amd64-bootstrap GOROOT=/sys/lib/go/amd64-1.15.2 cd amd64-1.15.2/src make.rc This will build the binaries under `$GOROOT/bin`. You can install these with: cp $GOROOT/bin/* /$objtype/bin or bind them with `/bin` in your profile: bind -b $GOROOT/bin /bin If you have the memory available on your system it may be faster to build using a ramfs in '/tmp'. Setting 'GOROOT_FINAL' to the desired final location of 'GOROOT' will help in building. mkdir -p /sys/lib/go/ ramfs cd /tmp hget https://golang.org/dl/go1.15.2.src.tar.gz | gunzip -c | tar x hget http://www.9legacy.org/download/go/go1.14.1-plan9-amd64-bootstrap.tbz | bunzip2 -c | tar x mv go amd64-1.15.2 GOROOT_BOOTSTRAP=/tmp/go-plan9-amd64-bootstrap GOROOT_FINAL=/sys/lib/go/amd64-1.15.2 cd amd64-1.15.2/src make.rc dircp /tmp/amd64-1.15.2 /sys/lib/go/ You can verify that GOROOT has been set properly using: $GOROOT_FINAL/bin/go env