File build/test/tests/12-threads.tcl artifact 7bfac57b1d part of check-in f8c7c20a57

#! /usr/bin/env tclsh

if {[catch {
	set buildflags [split [lindex $argv 1] -]

	# Determine if Threads was requested (or in 8.6+, unrequested)
	if {$tcl_version == "8.6"} {
		if {[lsearch -exact $buildflags "unthreaded"] == -1} {
			set isthreaded 1
		} else {
			set isthreaded 0
		}
	} else {
		if {[lsearch -exact $buildflags "threaded"] == -1} {
			set isthreaded 0
		} else {
			set isthreaded 1
		}
	}

	# Minimal builds don't come with threads.
	if {[lsearch -exact $buildflags "min"] != -1} {
		set isthreaded 0
	}

	if {!$isthreaded} {
		exit 0
	}

	package require Thread

	exit 0
}]} {
	puts "Error in Thread Test: $errorInfo"
	exit 1
}