[OS] Re: A bit more on ASL and Msys

[Bob Fourer]

> "Unfortunately, I'm not anAMPLuser and I don't have a good
> idea of how and where this function would be used."

I think matherr is used to signal failures in evaluating nonlinear
functions, such as division by zero and overflow.

Bob Fourer
4er at iems.northwestern.edu


> ----- Original Message -----
> From: "Kipp Martin" <kipp.mar... at chicagogsb.edu>
> To: "Lou Hafer" <l... at cs.sfu.ca>
> Cc: <o... at list.coin-or.org>
> Sent: Friday, August 24, 2007 8:30 PM
> Subject: Re: [OS] A bit more on ASL and Msys
>
> > Hi Lou:
>
> > I am able to build and run OS on MSys/cl using ASL with no problem, but
> > I am building with just
>
> > ./configure
>
> > I want to try to duplicate exactly what you are doing. What is your
> > command line when you run configure?
>
> > Thanks
>
> >> I took time on Wednesday to play with building OS/trunk under Msys, with
> >> ASL in the mix.  It looks like you've removed the use of the
> >> /mingw/include, and
> >> I had no problems there.  I still have difficulty with linking when ASL
> >> is
> >> present.  A few bits of information to think about:
>
> >> Library incompatibility seems to be the base issue.  When ASL is built
> >> with the compile_MS_ASL script, the script copies source files from
> >> ASL/solver
> >> into a build directory and then calls nmake with solvers/makefile.vc as
> >> the
> >> makefile.  Makefile.vc forces a set of C flags:
>
> >>   CFLAGS = -nologo -Ot1 -MT
>
> >> When I build in debug mode, this causes an immediate link problem for
> >> cbc, because the standard Coin debug build specifies -MTd. An optimised
> >> build
> >> has no trouble at this point, because Coin specifies -MT for the
> >> optimised
> >> build.
>
> >> Changing makefile.vc to specify -MTd / -MT as appropriate gets past cbc,
> >> but ultimately both debug and optimised builds founder on
> >> OS/src/OSSolverService.exe, with the message
>
> >>   amplsolv.lib(fpinitmt.obj) : error LNK2005: __matherr already defined
> >> in
> >>     LIBCMT.lib(matherr.obj)
> >>   Creating library OSSolverService.lib and object OSSolverService.exp
> >>   OSSolverService.exe : fatal error LNK1169: one or more multiply defined
> >>     symbols found
>
> >> Looking in ASL/solvers/fpinitmt.c, down toward the end of the file
> >> there's the code below, which defines a matherr subroutine.  When I added
> >> the
> >> #if 0 ...  endif guard to suppress this code, the build and link works
> >> just
> >> dandy.  OS claims it passes all its unit tests, but my guess is that this
> >> is not
> >> a conclusive test.  Unfortunately, I'm not anAMPLuser and I don't have
> >> a good
> >> idea of how and where this function would be used.
>
> >> #ifdef __MINGW32__
> >> #define matherr _matherr
> >> #endifLou
>
> >> #if 0
> >>  matherr_rettype
> >> matherr( struct _exception *e )
> >> {
> >> switch(e->type) {
> >>   case _DOMAIN:
> >>   case _SING:
> >> errno = set_errno(EDOM);
> >> break;
> >>   case _TLOSS:
> >>   case _OVERFLOW:
> >> errno = set_errno(ERANGE);
> >>   }
> >> return 0;
> >> }
> >> #endif
>
> >> Presumably, at some point in the evolution of Msys and/or MSVS, this
> >> definition was required. Perhaps it's no longer needed? I'm pretty sure
> >> I'm
> >> up-to-date for MSVS / Platform SDK / Msys --- all acquired within the
> >> last
> >> month, due to upgrading my home system.
>
> >> What do you folks see?
>
> >> Lou
>
> >> _______________________________________________
> >> OS mailing list
> >> O... at list.coin-or.org
> >>http://list.coin-or.org/mailman/listinfo/os
>
> > --
> > Kipp Martin
> > Professor of Operations Research
> > and Computing Technology
> > University of Chicago
> > Graduate School of Business
> > 5807 South Woodlawn Avenue
> > Chicago IL 60637
> > 773-702-7456
> >http://gsbkip.chicagogsb.edu
> >http://www.coin-or.org/
> > _______________________________________________
> > OS mailing list
> > O... at list.coin-or.org
> >http://list.coin-or.org/mailman/listinfo/os- Hide quoted text -
>
> - Show quoted text -


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