RE: MinGW build of octave

[Billings, Paul]

Less cruft: very often a worthy goal!
Effort for using rebuild gcc: The only difference between the original gcc
and rebuilt gcc is the implementation of exception handling.  Cygwin.dll
does not use C++ exceptions and would therefore not require a rebuild.  That
said, I haven't done it, so I could be all wet, but in theory... ;-)

I better understand the motivation, now -- thanks.  Best of luck toward a
MinGW version!

Paul


> -----Original Message-----
> From: David Bateman [mailto:address@hidden
> Sent: Thursday, August 11, 2005 10:04 AM
> To: octave maintainers mailing list
> Subject: Re: MinGW build of octave
>
>
> > Forgive me for being a nOOb, buy why are you working so hard to
> get cygwin
> > going under mingw?  It can't be the sjlj-speed-issue since rebuilding
> > cygwin's gcc is easier.  I am sure I am missing something.
>
>
> MinGW stands for "minimalist Cygwin", and builds binaries that don't
> depend on cygwin.dll or in fact any external dlls except those you
> specify yourself. So I'm not building cygwin under mingw, but rather a
> Windows native version of octave. The cygwin version is most certainly
> not native as it depends on symbolic links, its own libraries, etc not
> normally available in Windows. So ultimately MinGW is a much better way
> to go than cygwin as it contains less cruft.
>
> I also think you are mistaken on the amount of effort to rebuild cygwin
> gcc, since you not only have to rebuild cygwin gcc but all of the other
> libraries that octave depends on (cygwin.dll included). In fact you
> probably should rebuild everything in your cygwin install to avoid dll
> hell, with two versions of important libraries... Sorry, if MinGW is
> ultimately the better way to go I prefer to avoid that nightmare, and as
> an upside also avoid the sjlj slow-ups of cygwin builds with gcc
> 3.3 and 3.4
>
> Cheers
> David
>
> --
> David Bateman                                address@hidden
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