[f2py] g95 and f2py

[Bill McLean]

I have been experimenting with using the g95 compiler 
(http://g95.sourceforge.net/) to build python extension modules.  Add 
the attached file g95fcompiler.py to the scipy_distutils and adding the 
line

                   'g95':('g95fcompiler', 'G95FCompiler',
                          "G95 Compiler"),

to the fcompiler_class dictionary in fcompiler.py.  Doing

	f2py -c --help-fcompiler

I then get on my PC,

	List of available Fortran compilers:
	  --fcompiler=g95    G95 Compiler (Feb 16 2005)
	  --fcompiler=gnu    GNU Fortran Compiler (3.3.4)
	  --fcompiler=intel  Intel Fortran Compiler for 32-bit apps (8.1)
	  --fcompiler=pg     Portland Group Fortran Compiler (5.1-3)

Also, from the tests directory of the f2py distribution, doing

	 python run_all.py --fcompiler=g95 --quiet

I find that all f77 and f90 test are ok, except that the "mixed" source 
files

	foo.f foo_fixed.f90 foo_free.f90

are not found.

---------------------------------------------------------------------
Dr. William McLean                         tel: +61 2 9385 7045
School of Mathematics                      fax: +61 2 9385 7123
The University of New South Wales            Sydney 2052
email: w.mclean at unsw.edu.au
AUSTRALIA                                  CRICOS Code for UNSW: 00098G

Associate Editor, The ANZIAM Journal.
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# http://g95.sourceforge.net/

import os
import sys

from cpuinfo import cpu
from fcompiler import FCompiler

class G95FCompiler(FCompiler):

    compiler_type = 'g95'
    version_pattern = r'.*\(experimental\) \(g95!\) (?P<version>.*)\).*'

    executables = {
        'version_cmd'  : ["g95", "--version"],
        'compiler_f77' : ["g95"],
        'compiler_fix' : ["g95", "-ffixed-form"],
        'compiler_f90' : ["g95"],
        'linker_so'    : ["g95","-shared"],
        'archiver'     : ["ar", "-cr"],
        'ranlib'       : ["ranlib"]
        }
    pic_flags = ['-fpic']
    module_dir_switch = '-fmod='
    module_include_switch = '-I'

    def get_flags(self):
        return ['-fno-second-underscore']
    def get_flags_opt(self):
        return ['-O']
    def get_flags_debug(self):
        return ['-g']

if __name__ == '__main__':
    from distutils import log
    log.set_verbosity(2)
    from fcompiler import new_fcompiler
    compiler = new_fcompiler(compiler='g95')
    compiler.customize()
    print compiler.get_version()