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- Newsgroups: alt.msdos.programmer
- Path: sparky!uunet!cs.utexas.edu!uwm.edu!ux1.cso.uiuc.edu!news.cso.uiuc.edu!uxa.cso.uiuc.edu!btbg1194
- From: btbg1194@uxa.cso.uiuc.edu (Bradley T Banko)
- Subject: Mixed Language MS C calls MS FORTRAN (link errors!?)
- Message-ID: <BxJJFE.2q5@news.cso.uiuc.edu>
- Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
- Organization: University of Illinois at Urbana
- Date: Wed, 11 Nov 1992 07:28:24 GMT
- Lines: 77
-
-
- I am having some problems trying to do some mixed language programming
- using MS C (5.0) to call MS FORTRAN (5.1) functions. I think that I have
- sorted out all of the "language interface" problems (passing C variables
- by reference, etc.) and I have one C test program which compiles and links
- and runs with the Fortran subroutines just fine.
- I wrote a second program to test the Fortran subroutines, and I get a
- bunch of *link* time errors:
-
- L2025 symbol defined more than once
-
- and finally, it tells me that the fortran subroutine interface prototypes
- are improper or missing. There is almost *no* difference between these
- two simple test programs.
-
- I have the libraries LLIBFORE.LIB and LLIBCE.LIB in the path, and have used
- both the V3.61 and V5.16 linkers with similar results.
-
- I compile the FORTRAN file with:
-
- fl /c file.for (I have tried "fl /FPc /c" also)
-
- I compile the C program with:
-
- cl /AL /c cfile.c
-
- and link with:
-
- link cfile+cfile,,,,,,,, (all defaults)
-
- in the case of one test program, I get a bunch of "symbol redefined errors",
- and in the second case I get *no* errors. (I will include the linker outputs
- below for the curious.)
-
- Thanks in advance for any advice or comments to: b-banko@uiuc.edu
-
- Brad Banko
-
- tstrdwrt.c:
- ======================================================================
- Microsoft (R) Segmented-Executable Linker Version 5.15
- Copyright (C) Microsoft Corp 1984-1991. All rights reserved.
-
- Object Modules [.OBJ]: /NOE tstrdwrt rdwrtcp,,,,,
- ======================================================================
-
- rwcopy.c:
- ======================================================================
- Microsoft (R) Segmented-Executable Linker Version 5.15
- Copyright (C) Microsoft Corp 1984-1991. All rights reserved.
-
- Object Modules [.OBJ]: /NOE rwcopy rdwrtcp,,,,,C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __aexit_rtn : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __asizds : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __astart : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __atopsp : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __cintDIV : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0.asm) : error L2025: __amsg_exit : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __osversion : symbol defined more than once
- ...
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __umaskval : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __ctermsub : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __doserrno : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __fac : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: _exit : symbol defined more than once
- C:\FORTRAN\LIB\LLIBFOR7.lib(dos\crt0dat.asm) : error L2025: __psp : symbol defined more than once
-
- rwcopy.obj(rwcopy.c) : error L2052: '_readfl' : unresolved external; possible calling convention mismatch
- rwcopy.obj(rwcopy.c) : error L2052: '_writfl' : unresolved external; possible calling convention mismatch
-
-
- There were 72 errors detected
- ======================================================================
- --
- Brad Banko; Dept of Physics; U of Illinois; b-banko@uiuc.edu
- =========================================================================
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