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From: moss@BRL.ARPA (Gary S. Moss (SLCBR-VLD-V))
Newsgroups: net.unix-wizards
Subject: Re:  linking C and Fortran
Message-ID: <2668@brl-smoke.ARPA>
Date: Wed, 30-Jul-86 12:47:09 EDT
Article-I.D.: brl-smok.2668
Posted: Wed Jul 30 12:47:09 1986
Date-Received: Thu, 31-Jul-86 20:39:46 EDT
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Bill,
	CC prepends an underscore to the function name, and F77 appends
an underscore.  So, to call Fortran from C, name the function _forsub in
the Fortran module, invoke it as forsub_ in the C module.  You may have
to shorten the name to allow for the extra characters, depending on your
linker.  Conversely, define it as forsub_ in the C module, and invoke it
as _forsub in the Fortran module.  Be sure to define/invoke the function
from C with pointers (call by reference) exclusively.

-moss.