"""SCons.Tool.aixlink

Tool-specific initialization for the IBM Visual Age linker.

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, 2009 The SCons Foundation
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# 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
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__revision__ = "src/engine/SCons/Tool/aixlink.py 4369 2009/09/19 15:58:29 scons"

import os
import os.path

import SCons.Util

import aixcc
import link

cplusplus = __import__('c++', globals(), locals(), [])

def smart_linkflags(source, target, env, for_signature):
    if cplusplus.iscplusplus(source):
        build_dir = env.subst('$BUILDDIR', target=target, source=source)
        if build_dir:
            return '-qtempinc=' + os.path.join(build_dir, 'tempinc')
    return ''

def generate(env):
    """
    Add Builders and construction variables for Visual Age linker to
    an Environment.
    """
    link.generate(env)

    env['SMARTLINKFLAGS'] = smart_linkflags
    env['LINKFLAGS']      = SCons.Util.CLVar('$SMARTLINKFLAGS')
    env['SHLINKFLAGS']    = SCons.Util.CLVar('$LINKFLAGS -qmkshrobj -qsuppress=1501-218')
    env['SHLIBSUFFIX']    = '.a'

def exists(env):
    path, _cc, _shcc, version = aixcc.get_xlc(env)
    if path and _cc:
        xlc = os.path.join(path, _cc)
        if os.path.exists(xlc):
            return xlc
    return None

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