cd mycmd
go build mycmd

# cross-compile install with implicit GOBIN=$GOPATH/bin can make subdirectory
env GOARCH=386
[386] env GOARCH=amd64
env GOOS=linux
go install mycmd
exists $GOPATH/bin/linux_$GOARCH/mycmd

# cross-compile install with explicit GOBIN cannot make subdirectory
env GOBIN=$WORK/bin
! go install mycmd
! exists $GOBIN/linux_$GOARCH

# installing standard command should still work
# (should also be mtime update only if cmd/pack is up-to-date).
! stale cmd/pack
[!short] go install cmd/pack

-- mycmd/x.go --
package main
func main() {}
