"""SCons.Tool.ar

Tool-specific initialization for ar (library archive).

There normally shouldn't be any need to import this module directly.
It will usually be imported through the generic SCons.Tool.Tool()
selection method.

"""

#
# Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 The SCons Foundation
#
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# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
#
# The above copyright notice and this permission notice shall be included
# in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
# KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
# WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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__revision__ = "src/engine/SCons/Tool/ar.py 3842 2008/12/20 22:59:52 scons"

import SCons.Defaults
import SCons.Tool
import SCons.Util


def generate(env):
    """Add Builders and construction variables for ar to an Environment."""
    SCons.Tool.createStaticLibBuilder(env)

    env['AR']          = 'ar'
    env['ARFLAGS']     = SCons.Util.CLVar('rc')
    env['ARCOM']       = '$AR $ARFLAGS $TARGET $SOURCES'
    env['LIBPREFIX']   = 'lib'
    env['LIBSUFFIX']   = '.a'

    if env.Detect('ranlib'):
        env['RANLIB']      = 'ranlib'
        env['RANLIBFLAGS'] = SCons.Util.CLVar('')
        env['RANLIBCOM']   = '$RANLIB $RANLIBFLAGS $TARGET'

def exists(env):
    return env.Detect('ar')
