Re: [Fwd: Re: [Help-glpk] ANNOUNCEMENT: OptimJ solver link for GLPK/Java]

[Nigel Galloway]

OptimJ does not link to glpk. To use glpk you download an examples set which 
includes a directory 'OptimJ samples - GLPK Binaries' which contains a compiled 
glpk 4.36 dll and a java jar file. The source to produce the java jar file is 
included in 'OptimJ 1.3.10 samples - GLPK\OptimJ samples - GLPK 
Binaries\src\com\ateji\optimj\glpkliba\LibraryLoader.java'. All the code and 
information to upgrade to glpk 4.45 is openly available.

A better implementation would be if OptimJ provided an 'abstract java 
interface' which worked with any complient implementation, which could include 
glpk-java (using swig) or iajaar (not using swig) or their example (not using 
swig).

> ----- Original Message -----
> From: Xypron <address@hidden>
> To: chtimax <address@hidden>
> Cc: address@hidden
> Subject: Re: [Fwd: Re: [Help-glpk] ANNOUNCEMENT: OptimJ solver link for       
> GLPK/Java]
> Date: Wed, 19 Jan 2011 19:56:05 +0100
> 
> 
> Hello Max,
> 
> what is the license status of the generated code? Can it be 
> published under GPL or does it contain nonfree code or link to some 
> nonfree library?
> 
> Dynamically binding non-free code to GPL code is not allowable 
> under the GPL license. It would only be possible if the copyright 
> holder chose to change the GLPK license. E.g. by adding the 
> classpath extension 
> (http://www.gnu.org/software/classpath/license.html) or by changing 
> the license to LGPL.
> 
> Best regards
> 
> Xypron
> 
> 
> Andrew Makhorin wrote:
> > -------- Forwarded Message --------
> > From: chtimax<address@hidden>
> > To:address@hidden
> > Subject: Re: [Help-glpk] ANNOUNCEMENT: OptimJ solver link for GLPK/Java
> > Date: Wed, 19 Jan 2011 05:48:23 -0800 (PST)
> >
> > Hello Robie and All,
> >
> > Accept my apologies for the confusion in my previous message as I am not
> > familiar with the terminology of free software. OptimJ is free in the
> > monetary sense (no money changes hands) but not free in the sense of the
> > FSF.
> >
> > Allow me to precise that OptimJ is a source-to-source generator (it takes
> > high-level modeling code and generates Java source code) that does not link
> > to any optimization library including glpk.
> >
> > Max
> >
> >
> 
> 
> _______________________________________________
> Help-glpk mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/help-glpk

>


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