import os
import shutil
def test(var):
val = os.getenv(var)
print('%s=%s' % (var, val))
print(shutil.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()