if [ -z "$_GOTIME_DID_SETUP" ] ; then
    export PATH="$HOME/src/box-o-sand/src/gotime/.installation/go/bin:$PATH"
    export GOROOT="$HOME/src/box-o-sand/src/gotime/.installation/go"
    export GOPATH="$HOME/src/box-o-sand/src/gotime:$GOROOT"
    source "$GOROOT/misc/bash/go"
    export _GOTIME_DID_SETUP=1
fi