SCons/Tool/gfortran.py

   1 # MIT License
   2 #
   3 # Copyright The SCons Foundation
   4 #
   5 # Permission is hereby granted, free of charge, to any person obtaining
   6 # a copy of this software and associated documentation files (the
   7 # "Software"), to deal in the Software without restriction, including
   8 # without limitation the rights to use, copy, modify, merge, publish,
   9 # distribute, sublicense, and/or sell copies of the Software, and to
  10 # permit persons to whom the Software is furnished to do so, subject to
  11 # the following conditions:
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  13 # The above copyright notice and this permission notice shall be included
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  15 #
  16 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
  17 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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  22 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23
  24 """
  25 Tool-specific initialization for gfortran, the GNU Fortran compiler.
  26
  27 There normally shouldn't be any need to import this module directly.
  28 It will usually be imported through the generic SCons.Tool.Tool()
  29 selection method.
  30 """
  31
  32 from SCons.Util import CLVar
  33 from SCons.Tool.FortranCommon import add_all_to_env, add_fortran_to_env
  34
  35 compilers = ['gfortran']
  36
  37
  38 def generate(env) -> None:
  39     """Add Builders and construction variables for gfortran."""
  40
  41     add_all_to_env(env)
  42     add_fortran_to_env(env)
  43
  44     compiler = env.Detect(compilers) or 'gfortran'
  45
  46     # fill in other dialects (FORTRAN dialect set by fortran.generate(),
  47     # but don't overwrite if they have been set manually.
  48     for dialect in ['FORTRAN', 'F77', 'F90', 'F95', 'F03', 'F08']:
  49         if dialect not in env:
  50             env[f'{dialect}'] = compiler
  51         if f'SH{dialect}' not in env:
  52             env[f'SH{dialect}'] = f'${dialect}'
  53
  54         # The fortran module always sets the shlib FLAGS, but does not
  55         # include -fPIC, which is needed for the GNU tools. Rewrite if needed.
  56         if env['PLATFORM'] not in ['cygwin', 'win32']:
  57             env[f'SH{dialect}FLAGS'] = CLVar(f'${dialect}FLAGS -fPIC')
  58         env[f'INC{dialect}PREFIX'] = "-I"
  59         env[f'INC{dialect}SUFFIX'] = ""
  60
  61     env['FORTRANMODDIRPREFIX'] = "-J"
  62
  63
  64 def exists(env):
  65     return env.Detect('gfortran')
  66
  67 # Local Variables:
  68 # tab-width:4
  69 # indent-tabs-mode:nil
  70 # End:
  71 # vim: set expandtab tabstop=4 shiftwidth=4: