glpk problems on cygwin

[Tatsuro MATSUOKA]

Hello

Although strugling the matter, re-buidling or so, I cannot resolve it at the moment.
So I have to say that glpk does not work correctly for my distribution of octave-3.0.x on cygwin.

I will make small corrction of the previous mail

> For the octave on the Macro's official cygwin distribution does not cause this error.
   :
   :
> **********************************************
> In addition, octave on MSVC and Octave on MinGW(Tatsuro) causes such an error.

==>In addition, octave on MSVC and Octave on MinGW(Tatsuro) do not cause such an error.


Only cygwin octave build by gcc-dw2 suffer from the error.
Perhaps it is not easy to solve it.
If one would like to use my binary, please care that glpk does not work correctly.


Note: Official distribution of the octave-3.0.1 on cygwin can be installed by cygwin setup
(Math Category.)


Regards

Tatsuro


--- Tatsuro MATSUOKA <tmacchant at yahoo.co.jp> wrote:

> Hello
> 
> --- Jaroslav Hajek <highegg at gmail.com> wrote:
> 
> > Hi,
> > this is a translated bug report from a friend of mine using Octave
> > 3.0.1 from cygwin distribution.
> > Given the inputs
> > c = [-22,-25]; a =  a = [2,1;1,1;1,2]; b = [26,14,22];
> > the glpk call
> > glpk(c, a, b, [], [], 'UUU')
> > frequently (but randomly) produces tiny values instead the correct
> > result ([6;8]).
> > I can't reproduce this problem on Linux; can anyone confirm this as a
> > cygwin-specific issue?
> > 
> > regards
> 
> I have confirmed this error occured on my octave on cygwin-gccdw2.
> For the octave on the Macro's official cygwin distribution does not cause this error.
> 
> $ /bin/octave
> GNU Octave, version 3.0.1
> Copyright (C) 2008 John W. Eaton and others.
> This is free software; see the source code for copying conditions.
> There is ABSOLUTELY NO WARRANTY; not even for MERCHANTIBILITY or
> FITNESS FOR A PARTICULAR PURPOSE.  For details, type `warranty'.
> 
> Octave was configured for "i686-pc-cygwin".
> 
> Additional information about Octave is available at http://www.octave.org.
> 
> Please contribute if you find this software useful.
> For more information, visit http://www.octave.org/help-wanted.html
> 
> Report bugs to <bug at octave.org> (but first, please read
> http://www.octave.org/bugs.html to learn how to write a helpful report).
> 
> For information about changes from previous versions, type `news'.
> 
> octave:1> c = [-22,-25]; a =  a = [2,1;1,1;1,2]; b = [26,14,22];
> octave:2> glpk(c, a, b, [], [], 'UUU')
> ans =
> 
>    6
>    8
> 
> **********************************************
> In addition, octave on MSVC and Octave on MinGW(Tatsuro) causes such error.
>  
> I will check my glpk libraries.
> Thanks!
> 
> Tatsuro
> 
> 
> 
> 
> 
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