"""engine.SCons.Tool.g77

Tool-specific initialization for g77.

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.

"""

#
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__revision__ = "src/engine/SCons/Tool/g77.py rel_2.5.1:3735:9dc6cee5c168 2016/11/03 14:02:02 bdbaddog"

import SCons.Util
from SCons.Tool.FortranCommon import add_all_to_env, add_f77_to_env

compilers = ['g77', 'f77']

def generate(env):
    """Add Builders and construction variables for g77 to an Environment."""
    add_all_to_env(env)
    add_f77_to_env(env)

    fcomp = env.Detect(compilers) or 'g77'
    if env['PLATFORM'] in ['cygwin', 'win32']:
        env['SHFORTRANFLAGS'] = SCons.Util.CLVar('$FORTRANFLAGS')
        env['SHF77FLAGS'] = SCons.Util.CLVar('$F77FLAGS')
    else:
        env['SHFORTRANFLAGS'] = SCons.Util.CLVar('$FORTRANFLAGS -fPIC')
        env['SHF77FLAGS'] = SCons.Util.CLVar('$F77FLAGS -fPIC')

    env['FORTRAN'] = fcomp
    env['SHFORTRAN'] = '$FORTRAN'

    env['F77'] = fcomp
    env['SHF77'] = '$F77'

    env['INCFORTRANPREFIX'] = "-I"
    env['INCFORTRANSUFFIX'] = ""

    env['INCF77PREFIX'] = "-I"
    env['INCF77SUFFIX'] = ""

def exists(env):
    return env.Detect(compilers)

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