Re: [Help-glpk] GLPK-Java JNI in Mac OS X 10.5.8

Hi Xypron,

On 31 Jan 2012, at 07:34, glpk xypron wrote:

> Hello Ricardo,
>
> java.lang.UnsatisfiedLinkError means that the native library *.dylib  
> either could not be loaded or did not contain the C function needed.
>
> It is necessary that the *.dylib files are in the library search  
> path. For glpk_java.dylib this can be achieved by setting  
> java.library.path when invoking the Java runtime.
>
> When compling you will have run
> ./configure
> make
> make check
>
> Did you get the same error when executing "make check"?

Yes, sorry, I forgot to tell it the first time. This is the error I'm  
getting:

Exception in thread "main" java.lang.UnsatisfiedLinkError:  
org.gnu.glpk.GLPKJNI.glp_term_hook(JJ)V
        at org.gnu.glpk.GLPKJNI.glp_term_hook(Native Method)
        at org.gnu.glpk.GLPK.glp_term_hook(GLPK.java:721)
        at org.gnu.glpk.GlpkTerminal.<clinit>(GlpkTerminal.java:13)
        at Gmpl.solve(Gmpl.java:27)
        at Gmpl.main(Gmpl.java:12)
make: *** [check] Error 1

It's not *exactly* the same unsatisfied link error, it's in another  
function but it's the same issue I guess

> By the way did you have to make any changes to the configuration  
> script to get it running on OX X? I do not have access to an Apple  
> myself.

:)
Yes, I've to force gcc to compile for 64 bits by setting -m64 option  
when invoking gcc compiler (CC, CPP variables), and I've to remove any  
reference to target/source specific when invoking JAVAC (i.e., I've  
removed the parameters -source 1.6 -target 1.6), because javac returns  
me an error when compiling:

javac: invalid source release: 1.6

My javac version is
$ javac -version
javac 1.6.0_26

Any idea for fixing it?

Best regards,
Ricardo

> Best regards
>
> Xypron
> -------- Original-Nachricht --------
> > Datum: Mon, 30 Jan 2012 11:41:36 +0100
> > Betreff: [Help-glpk] GLPK-Java JNI in Mac OS X 10.5.8
>
> > Dear all,
> > I've some problems while testing the glpk-java for MacOS X 10.5.8.
> >
> > I'm working with GLPK-4.47 and libglpk-java-1.0.19. I've downloaded
> > the latter and properly compile it for x86_64, to avoid the 'match-o,
> > but wrong architecture' error issue. Now, the library is compiled for
> > 64 bits, and seems to be no problem when being loaded by Java VM.
> >
> > The problem arises me when I try to invoke GLPK from Java:
> > Exception in thread "AWT-EventQueue-0"  
> > java.lang.UnsatisfiedLinkError:
> > org.gnu.glpk.GLPKJNI.glp_create_prob()J
> >         at org.gnu.glpk.GLPKJNI.glp_create_prob(Native Method)
> >         at org.gnu.glpk.GLPK.glp_create_prob(GLPK.java:65)
> >         at net.sf.javailp.SolverGLPK.solve(SolverGLPK.java:115)
> > (...)
> >
> > It seems such a method is not defined in the JAR file, but I'm using
> > the glpk-java.jar and the JNI dynamic library, recently compiled from
> > libglpk-java-1.0.19 sources. Am I missing something? Any idea?
> >
> > It's a pity that the tool I've developed is unavailable to run on
> > MacOS by this error :'(, it would be wonderful if you guys have some
> > idea to fix this!
> >
> >
> > Thanks in advance, regards
> > --
> > Ricardo J. Rodríguez
> > _______________________________________________
> > Help-glpk mailing list
> > address@hidden
> > https://lists.gnu.org/mailman/listinfo/help-glpk
>
> --
> Follow me at http://twitter.com/#!/xypron
>
> Empfehlen Sie GMX DSL Ihren Freunden und Bekannten und wir
> belohnen Sie mit bis zu 50,- Euro! https://freundschaftswerbung.gmx.de