"""SCons.Tool.gfortran

Tool-specific initialization for gfortran, the GNU Fortran 95/Fortran
2003 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__
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# without limitation the rights to use, copy, modify, merge, publish,
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# permit persons to whom the Software is furnished to do so, subject to
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# The above copyright notice and this permission notice shall be included
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# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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__revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"

import SCons.Util

from . import fortran

def generate(env):
    """Add Builders and construction variables for gfortran to an
    Environment."""
    fortran.generate(env)

    for dialect in ['F77', 'F90', 'FORTRAN', 'F95', 'F03', 'F08']:
        env['%s' % dialect] = 'gfortran'
        env['SH%s' % dialect] = '$%s' % dialect
        if env['PLATFORM'] in ['cygwin', 'win32']:
            env['SH%sFLAGS' % dialect] = SCons.Util.CLVar('$%sFLAGS' % dialect)
        else:
            env['SH%sFLAGS' % dialect] = SCons.Util.CLVar('$%sFLAGS -fPIC' % dialect)

        env['INC%sPREFIX' % dialect] = "-I"
        env['INC%sSUFFIX' % dialect] = ""

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

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