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| halvor.lund@gmail.com 2007-06-15, 4:21 am |
| I'm trying to convert a Fortran 77 executable into a DLL, which I in
turn intend to use in a C program. The Fortran program is already
working as a standalone application. What I can't figure out, is how
to tell the compiler which functions or subroutines I want to export.
I'm using Watcom Fortran 77 v. 11 and trying to compile a Win32 DLL.
It would also be nice if you could tell me how I make use of this DLL
from a C program.
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| e p chandler 2007-06-15, 10:08 pm |
| On Jun 15, 2:24 am, halvor.l...@gmail.com wrote:
> I'm trying to convert a Fortran 77 executable into a DLL, which I in
> turn intend to use in a C program. The Fortran program is already
> working as a standalone application. What I can't figure out, is how
> to tell the compiler which functions or subroutines I want to export.
> I'm using Watcom Fortran 77 v. 11 and trying to compile a Win32 DLL.
>
> It would also be nice if you could tell me how I make use of this DLL
> from a C program.
1. Manuals for Open Watcom, which are quite similar to those of
version 11 are available at
http://www.openwatcom.com/index.php/Manuals
see the "Fortran 77 Programmer's Guide". p 237 is Windows NT DLLs. p
283 is Mixed language programming.
2. Try the newsgroups
openwatcom.users.fortran
openwatcom.users.c_cpp
3. Manuals for version 11.0c are available at
ftp://ftp.openwatcom.org/archive/11.0c/docs/
see table of contents, page numbers close to those in open watcom docs
4. pragma aux and various other features and switches particular to
watcom/open watcom [yet another toolset to learn :-(]
HTH
- e-mail: epc8 at juno dot com
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