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#!/usr/bin/env python
# Copyright (c) 2012 Google Inc. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
"""
Verifies that xcode-style GCC_... settings are handled properly.
"""
import TestGyp
import os
import subprocess
import sys
def IgnoreOutput(string, expected_string):
return True
def CompilerVersion(compiler):
stdout = subprocess.check_output([compiler, '-v'], stderr=subprocess.STDOUT)
stdout = stdout.decode('utf-8')
return stdout.rstrip('\n')
def CompilerSupportsWarnAboutInvalidOffsetOfMacro(test):
# "clang" does not support the "-Winvalid-offsetof" flag, and silently
# ignore it. Starting with Xcode 5.0.0, "gcc" is just a "clang" binary with
# some hard-coded include path hack, so use the output of "-v" to detect if
# the compiler supports the flag or not.
return 'clang' not in CompilerVersion('/usr/bin/cc')
if sys.platform == 'darwin':
test = TestGyp.TestGyp(formats=['ninja', 'make', 'xcode'])
if test.format == 'xcode-ninja':
test.skip_test()
CHDIR = 'xcode-gcc'
test.run_gyp('test.gyp', chdir=CHDIR)
# List of targets that'll pass. It expects targets of the same name with
# '-fail' appended that'll fail to build.
targets = [
'warn_about_missing_newline',
]
# clang doesn't warn on invalid offsetofs, it silently ignores
# -Wno-invalid-offsetof.
if CompilerSupportsWarnAboutInvalidOffsetOfMacro(test):
targets.append('warn_about_invalid_offsetof_macro')
for target in targets:
test.build('test.gyp', target, chdir=CHDIR)
test.built_file_must_exist(target, chdir=CHDIR)
fail_target = target + '-fail'
test.build('test.gyp', fail_target, chdir=CHDIR, status=None,
stderr=None, match=IgnoreOutput)
test.built_file_must_not_exist(fail_target, chdir=CHDIR)
test.pass_test()
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