[fedora-java] Shared library paths for native linker
Deepak Bhole
dbhole at redhat.com
Tue Sep 27 15:22:10 UTC 2011
* Petr Pisar <ppisar at redhat.com> [2011-09-27 11:00]:
> Hello,
>
> I have a non-java package (pl) which links to jvm. Build scripts of pl
> needs to locate directories with libjava.so, libjvm.so etc. and instruct
> native linker (ld) where to find them (-L option).
>
> Current implementation in the pl.spec is uggly (a lot of ad-hoc hacks for
> each platform which requires tuning time to time
> <https://bugzilla.redhat.com/show_bug.cgi?id=740897>).
>
> So I decided to find ultimate way how to obtain path for linker and Java
> home directory. Unfortunatelly, I did not find any. So I've written
> one. You can find it as attachment at the afore-mentioned bug report.
>
> Usage is inspired by pkg-config:
>
> $ javac JavaConfig.java
> $ java JavaConfig --home
> /usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre
> $ java JavaConfig --libs-only-L
> -L/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64/server
> -L/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/lib/amd64
> -L/usr/lib/jvm/java-1.6.0-openjdk-1.6.0.0.x86_64/jre/../lib/amd64
> -L/usr/java/packages/lib/amd64 -L/usr/lib64 -L/lib64 -L/lib -L/usr/lib
>
> I can bundle the tool to my `pl' package, but I think it could be
> helpful for others too. So I'd like to ask Java SIG whether it wants to
> adopt it (e.g. as a part of JDK).
>
Out of curiosity, is there a reason why the OpenJDK RPM on Fedora cannot
install .pc files so that pkg-config itself can be used?
Adding Andrew Hughes to cc:
Cheers,
Deepak
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