Function init

v2/tools/gcc.py:87–194

Initializes the gcc toolset for the given version. If necessary, command may be used to specify where the compiler is located. The parameter 'options' is a space-delimited list of options, each one specified as option-value. Valid option names are: cxxfl

(version = None, command = None, options = None)

__version_match = re.compile('^([0-9.]+)')

def init(version = None, command = None, options = None):
    """
        Initializes the gcc toolset for the given version. If necessary, command may
        be used to specify where the compiler is located. The parameter 'options' is a
        space-delimited list of options, each one specified as
        <option-name>option-value. Valid option names are: cxxflags, linkflags and
        linker-type. Accepted linker-type values are gnu, darwin, osf, hpux or sun
        and the default value will be selected based on the current OS.
        Example:
          using gcc : 3.4 : : <cxxflags>foo <linkflags>bar <linker-type>sun ;
    """

    options = to_seq(options)
    command = to_seq(command)

    # Information about the gcc command...
    #   The command.
    command = to_seq(common.get_invocation_command('gcc', 'g++', command))
    #   The root directory of the tool install.
    root = feature.get_values('<root>', options) ;
    #   The bin directory where to find the command to execute.
    bin = None
    #   The flavor of compiler.
    flavor = feature.get_values('<flavor>', options)
    #   Autodetect the root and bin dir if not given.
    if command:
        if not bin:
            bin = common.get_absolute_tool_path(command[-1])
        if not root:
            root = os.path.dirname(bin)
    #   Autodetect the version and flavor if not given.
    if command:
        machine_info = subprocess.Popen(command + ['-dumpmachine'], stdout=subprocess.PIPE).communicate()[0]
        machine = __machine_match.search(machine_info).group(1)

        version_info = subprocess.Popen(command + ['-dumpversion'], stdout=subprocess.PIPE).communicate()[0]
        version = __version_match.search(version_info).group(1)
        if not flavor and machine.find('mingw') != -1:
            flavor = 'mingw'

    condition = None
    if flavor:
        condition = common.check_init_parameters('gcc', None,
            ('version', version),
            ('flavor', flavor))
    else:
        condition = common.check_init_parameters('gcc', None,
            ('version', version))

    if command:
        command = command[0]

    common.handle_options('gcc', condition, command, options)

    linker = feature.get_values('<linker-type>', options)
    if not linker:
        if os_name() == 'OSF':
            linker = 'osf'