"""engine.SCons.Tool.aixf77

Tool-specific initialization for IBM Visual Age f77 Fortran compiler.

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 - 2019 The SCons Foundation
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# permit persons to whom the Software is furnished to do so, subject to
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__revision__ = "src/engine/SCons/Tool/aixf77.py a56bbd8c09fb219ab8a9673330ffcd55279219d0 2019-03-26 23:16:31 bdeegan"

import os.path

#import SCons.Platform.aix

from . import f77

# It would be good to look for the AIX F77 package the same way we're now
# looking for the C and C++ packages.  This should be as easy as supplying
# the correct package names in the following list and uncommenting the
# SCons.Platform.aix_get_xlc() call in the function below.
packages = []

def get_xlf77(env):
    xlf77 = env.get('F77', 'xlf77')
    xlf77_r = env.get('SHF77', 'xlf77_r')
    #return SCons.Platform.aix.get_xlc(env, xlf77, xlf77_r, packages)
    return (None, xlf77, xlf77_r, None)

def generate(env):
    """
    Add Builders and construction variables for the Visual Age FORTRAN
    compiler to an Environment.
    """
    path, _f77, _shf77, version = get_xlf77(env)
    if path:
        _f77 = os.path.join(path, _f77)
        _shf77 = os.path.join(path, _shf77)

    f77.generate(env)

    env['F77'] = _f77
    env['SHF77'] = _shf77

def exists(env):
    path, _f77, _shf77, version = get_xlf77(env)
    if path and _f77:
        xlf77 = os.path.join(path, _f77)
        if os.path.exists(xlf77):
            return xlf77
    return None

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