# Copyright 2018 The Emscripten Authors. All rights reserved.

# Emscripten is available under two separate licenses, the MIT license and the

# University of Illinois/NCSA Open Source License. Both these licenses can be

# found in the LICENSE file.

import os

def which(program):

def is_exe(fpath):

return os.path.isfile(fpath) and os.access(fpath, os.X_OK)

fpath, fname = os.path.split(program)

if fpath:

if is_exe(program):

return program

else:

for path in os.getenv("PATH", "").split(os.pathsep):

exe_file = os.path.join(path, program)

if is_exe(exe_file):

return exe_file

raise Exception('that is very bad')

def test(var):

val = os.getenv(var, '')

print('%s=%s' % (var, val))

print(which(val))

def check_ar():

print("Testing...")

test("CC")

test("CXX")

test("AR")

test("LD")

test("NM")

test("LDSHARED")

test("RANLIB")

print("Done.")

check_ar()