bootgo=1.20.6

set -e

if [[ ! -f run.bash ]]; then
	echo 'make.bash must be run from $GOROOT/src' 1>&2
	exit 1
fi

if [[ "$GOBUILDTIMELOGFILE" != "" ]]; then
	echo $(LC_TIME=C date) start make.bash >"$GOBUILDTIMELOGFILE"
fi

# Test for Windows.
case "$(uname)" in
*MINGW* | *WIN32* | *CYGWIN*)
	echo 'ERROR: Do not use make.bash to build on Windows.'
	echo 'Use make.bat instead.'
	echo

}

var (
	timeLogEnabled = os.Getenv("GOBUILDTIMELOGFILE") != ""
	timeLogMu      sync.Mutex
	timeLogFile    *os.File
	timeLogStart   time.Time
)

func timelog(op, name string) {
	if !timeLogEnabled {
		return
	}
	timeLogMu.Lock()
	defer timeLogMu.Unlock()
	if timeLogFile == nil {
		f, err := os.OpenFile(os.Getenv("GOBUILDTIMELOGFILE"), os.O_RDWR|os.O_APPEND, 0666)
		if err != nil {