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

Hi again Xypron,

On 1 Feb 2012, at 18:22, glpk xypron wrote:

> Hello Ricardo,
>
> on a 64bit system you could install two different Java runtimes:
> A 32bit runtime and a 64bit runtime.
>
> A 64bit runtime can only load 64bit libraries.
> A 32bit runtime can only load 32bit libraries.
>
> Did you check the bitness of the GLPK library (glpk.dylib)?
> The glpk_java.dylib will load glpk.dylib. The bitness must match.

Yes, they match.

wi-3-218:~ death$ lipo -info /usr/local/lib/libglpk.dylib
Non-fat file: /usr/local/lib/libglpk.dylib is architecture: x86_64

wi-3-218:~ death$ lipo -info Downloads/libglpk-java-1.0.19/swig/.libs/ 
libglpk_java.dylib
Non-fat file: Downloads/libglpk-java-1.0.19/swig/.libs/ 
libglpk_java.dylib is architecture: x86_64

And the same error arises with 'make check':
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)

I've tested compiling *without* -m64 flag both, glpk and libgplk-java,  
and again I obtain from Java the 'match-o, wrong architecture' error


> For the bitness of GCC. Compile the proposed code with -m64 and  
> check the output again.

It seems it compiles for x64:

wi-3-218:~ death$ gcc -m64 test.c -o test
wi-3-218:~ death$ ./test
Running in 64bit mode.

Quite odd, any further idea?

Regards,
Ricardo

> Best regards
>
> Xypron
>
> -------- Original-Nachricht --------
> > Datum: Wed, 1 Feb 2012 11:00:20 +0100
> > Betreff: Re: [Help-glpk] GLPK-Java JNI in Mac OS X 10.5.8
>
> > Dear Xypron,
> > OK, I've executed again the original ./configure and the original
> > Makefile without modifying anything.
> >
> > /configure         CPPFLAGS=-I/System/Library/Frameworks/
> > JavaVM.framework/Headers         SWIGFLAGS=-I/System/Library/
> > Frameworks/JavaVM.framework/Headers JAVA_HOME=/System/Library/
> > Frameworks/JavaVM.framework/Versions/1.6.0/Home/
> >
> > I've properly set JAVA_HOME avoiding the 'invalid source release',
> > thank you. I don't get why MacOS have all JavaVM installed by default
> > up to 1.6, and the 'Current' is linked to 1.5 by default ¿? anyway...
> >
> > Setting all by default, as I said, without modifying anything, this  
> > is
> > the error I get when executing 'make check':
> > Exception in thread "main" java.lang.UnsatisfiedLinkError: /Users/
> > death/Downloads/libglpk-java-1.0.19/swig/.libs/libglpk_java.0.dylib:
> > no suitable image found.  Did find:  /Users/death/Downloads/libglpk-
> > java-1.0.19/swig/.libs/libglpk_java.0.dylib: mach-o, but wrong
> > architecture
> >
> > I've been googling, and I found that it seems that Java is not able  
> > to
> > load a 32bit library, even it should be:
> > $ lipo -info /usr/bin/java
> > Architectures in the fat file: /usr/bin/java are: ppc7400 i386 x86_64
> >
> > And the GLPK-java library is:
> > $ lipo -info libglpk-java-1.0.19/swig/.libs/libglpk_java.dylib
> > Non-fat file: libglpk-java-1.0.19/swig/.libs/libglpk_java.dylib is
> > architecture: i386
> >
> > That's the reason I added the flag -m64. By compiling it with such a
> > flag, I get the error I commented before:
> >
> > > > 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)
> >
> >
> > About the architecture, I think (please correct me if I'm wrong) that
> > MacOS X 10.5.8 is 32bit kernel only.
> >
> > I've checked with the source codes you've given to me and the results
> > are:
> >
> > GCC: Running in 32bit mode.
> >
> > Java: 64
> >
> > So... I'm running a JavaVM 64bits in a computer running in 32bit
> > environment... interesting
> >
> > Any further idea?
> >
> > Best regards,
> > Ricardo
>
> --
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