Re: Fwd: [Bug c++/14563] octave built under Cygwin very slow]

[Shai Ayal]

I had problems with gcc 3.4.1 on cygwin. It's all documented in this thread

http://www.octave.org/octave-lists/archive/bug-octave.2005/msg00269.html

Shai

On 8/6/05, Andy Adler <address@hidden> wrote:
> On Fri, 5 Aug 2005, James R. Phillips wrote:
> > --- Paul Billings  wrote:
> >
> > > I have read as much as this thread as I can, including all the traffic on
> > > the gcc bugzilla report. ...  Is the problem present in the currently
> > > distributed octave executable in cygwin?
> >
> > There is bad news, and there is good news.  The good news is that octave on
> > cygwin is currently built with gcc3.3, which doesn't have this bug.  The bad
> > news is that this is done because the problems with building octave on 
> > cygwin
> > with gcc3.4 are so severe that the build hangs before producing its first 
> > user
> > prompt.
> >
> > I build octave on cygwin so I can use it myself, and it is pretty speedy,
> > particularly if you install lapack source and build an optimized blas 
> > library.
> 
> Gcc3.3, as supplied by cygwin, uses SJLJ. Thus James' octave version
> will have this issue.
> 
> I have two comments:
>   - I'm also seeing the compile problems with gcc3.4; however Paul
>     Soderlind sent me a note that he had no problem with gcc3.4.
>     Would anyone else like to comment on their experiences with
>     octave/cygwin/gcc3.4?
> 
>   - Has anyone tried to compile octave with a gcc version compiled
>     with --disable-sjlj-exceptions?
> 
> --
> Andy Adler
> 
>