Accessing fortran libraries

Hi,

I would like to access a fortran DLL in linux (x86_64) using ctypes. I
thought that this would be transparent, but if I try I get the following
problems

mylib = ctypes.CDLL ("./libmylib_x86_64.so")

OSError                                   Traceback (most recent call last)

OSError: ./libmylib_x86_64.so: undefined symbol: _gfortran_internal_malloc64

Out of interest, I tried ld on the library, and I found that other
gfortran-related functions are missing, as well as some from math.h (for
example, log, cos, sin,  _gfortran_transfer_real, _gfortran_st_write,
_gfortran_pow_r8_i4, _gfortran_internal_unpack, _gfortran_st_write_done,
etc.). I link code to this library and it works, but I would like to access
the library from python.

There's something I am obviously  missing, but I don't even know where to
start looking! Any hints greatly appreciated.

Thanks!
Jose

-- 
RSU ■ Dept. of Geography ■ University College ■ Gower St, London WC1E 6BT UK
EMM ■ Dept. of Geography ■ King's College ■  Strand, London WC2R 2LS UK

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