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      1 #!/usr/bin/env python
      2 # Copyright (c) 2012 Google Inc. All rights reserved.
      3 # Use of this source code is governed by a BSD-style license that can be
      4 # found in the LICENSE file.
      5 """
      6 Verifies that the user can override the compiler and linker using CC/CXX/LD
      7 environment variables.
      8 """
      9 
     10 import TestGyp
     11 import os
     12 import copy
     13 import sys
     14 
     15 here = os.path.dirname(os.path.abspath(__file__))
     16 
     17 if sys.platform == 'win32':
     18   # cross compiling not support by ninja on windows
     19   # and make not supported on windows at all.
     20   sys.exit(0)
     21 
     22 # Clear any existing compiler related env vars.
     23 for key in 'CC', 'CXX', 'LD', 'CC_host', 'CXX_host', 'LD_host':
     24   if key in os.environ:
     25     del os.environ[key]
     26 
     27 
     28 def CheckCompiler(test, gypfile, check_for, run_gyp):
     29   if run_gyp:
     30     test.run_gyp(gypfile)
     31   test.build(gypfile)
     32 
     33   # We can't test to presence of my_ld.py in the output since
     34   # ninja will use CXX_target as the linker regardless
     35   test.must_contain_all_lines(test.stdout(), check_for)
     36 
     37 
     38 test = TestGyp.TestGyp(formats=['ninja', 'make'])
     39 
     40 def TestTargetOveride():
     41   # Check that CC, CXX and LD set target compiler
     42   oldenv = os.environ.copy()
     43   try:
     44     os.environ['CC'] = 'python %s/my_cc.py FOO' % here
     45     os.environ['CXX'] = 'python %s/my_cxx.py FOO' % here
     46     os.environ['LD'] = 'python %s/my_ld.py FOO_LINK' % here
     47 
     48     CheckCompiler(test, 'compiler.gyp',
     49                   ['my_cc.py', 'my_cxx.py', 'FOO', 'FOO_LINK'],
     50                   True)
     51   finally:
     52     os.environ.clear()
     53     os.environ.update(oldenv)
     54 
     55   # Run the same tests once the eviron has been restored.  The
     56   # generated should have embedded all the settings in the
     57   # project files so the results should be the same.
     58   CheckCompiler(test, 'compiler.gyp',
     59                 ['my_cc.py', 'my_cxx.py', 'FOO', 'FOO_LINK'],
     60                 False)
     61 
     62 def TestTargetOverideCompilerOnly():
     63   # Same test again but with that CC, CXX and not LD
     64   oldenv = os.environ.copy()
     65   try:
     66     os.environ['CC'] = 'python %s/my_cc.py FOO' % here
     67     os.environ['CXX'] = 'python %s/my_cxx.py FOO' % here
     68 
     69     CheckCompiler(test, 'compiler.gyp',
     70                   ['my_cc.py', 'my_cxx.py', 'FOO'],
     71                   True)
     72   finally:
     73     os.environ.clear()
     74     os.environ.update(oldenv)
     75 
     76   # Run the same tests once the eviron has been restored.  The
     77   # generated should have embedded all the settings in the
     78   # project files so the results should be the same.
     79   CheckCompiler(test, 'compiler.gyp',
     80                 ['my_cc.py', 'my_cxx.py', 'FOO'],
     81                 False)
     82 
     83 
     84 def TestHostOveride():
     85   # Check that CC_host sets host compilee
     86   oldenv = os.environ.copy()
     87   try:
     88     os.environ['CC_host'] = 'python %s/my_cc.py HOST' % here
     89     os.environ['CXX_host'] = 'python %s/my_cxx.py HOST' % here
     90     os.environ['LD_host'] = 'python %s/my_ld.py HOST_LINK' % here
     91     CheckCompiler(test, 'compiler-host.gyp',
     92                   ['my_cc.py', 'my_cxx.py', 'HOST', 'HOST_LINK'],
     93                   True)
     94   finally:
     95     os.environ.clear()
     96     os.environ.update(oldenv)
     97 
     98   # Run the same tests once the eviron has been restored.  The
     99   # generated should have embedded all the settings in the
    100   # project files so the results should be the same.
    101   CheckCompiler(test, 'compiler-host.gyp',
    102                 ['my_cc.py', 'my_cxx.py', 'HOST', 'HOST_LINK'],
    103                 False)
    104 
    105 
    106 TestTargetOveride()
    107 TestTargetOverideCompilerOnly()
    108 TestHostOveride()
    109 
    110 test.pass_test()
    111