[kaffe] JNI load

[Helmer Krämer]

This is a multi-part message in MIME format.

--Multipart_Fri__20_Dec_2002_17:59:13_+0100_09167aa8
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

On Fri, 20 Dec 2002 15:50:24 +0100
Richard Stahl <richard.stahl@imec.be> wrote:

Hi,

> I am sorry yet I again have a problem with the cvs version of kaffe 
> which I do not have with the release version!
>
> I am using JNI, so I used to specify the LD_LIBRARY_PATH to the place 
> where I have e.g. libMeta.so for class Meta.java ... (this works for the 
> release version!) yet it does not load the library and prints:
> 
> java.lang.ExceptionInInitializerError: [exception was 
> java.lang.UnsatisfiedLinkError: libMeta: not found]
>          at demo.main(demo.java:20)
> java.lang.UnsatisfiedLinkError: libMeta: not found
>          at java.lang.Throwable.fillInStackTrace(Throwable.java:native)
>          at java.lang.Throwable.<init>(Throwable.java:38)
>          at java.lang.Error.<init>(Error.java:81)
>          at java.lang.LinkageError.<init>(LinkageError.java:21)
>          at 
> java.lang.UnsatisfiedLinkError.<init>(UnsatisfiedLinkError.java:21)
>          at java.lang.Runtime.loadLibrary(Runtime.java:151)
>          at java.lang.System.loadLibrary(System.java:249)
>          at Meta.<clinit>(Meta.java:25)
>          at demo.main(demo.java:20)
> 
> Could you please give me some hints how to fix it.

I encountered the same  problem a few  days ago but
somehow didn't get around to send patches, sorry :(

When loading native libraries,  kaffe appends a few
different extensions to the name that was passed to
System.loadLibrary () and checks whether libtool is
able to load that file. What happens now is that
kaffe doesn't try the extension ".so" anymore since
the new libtool version (1.4.3) does not export the
autoconf macros necessary to figure out that ".so"
is the extension of dynamic libraries.

I've solved this by applying external.patch, so that
kaffe doesn't append the extensions itself but rather
lets libtool do that (by calling lt_dlopenext).

The next attached patch (libltdl.patch) is necessary
because lt_dlopenext contains a bug that prevents it
from trying to load  non-libtool libraries (the same
patch has been applied to libtool cvs  about 8 weeks
ago). 

Greetings,
Helmer
--Multipart_Fri__20_Dec_2002_17:59:13_+0100_09167aa8
Content-Type: application/octet-stream;
 name="libltdl.patch"
Content-Disposition: attachment;
 filename="libltdl.patch"
Content-Transfer-Encoding: base64
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--Multipart_Fri__20_Dec_2002_17:59:13_+0100_09167aa8
Content-Type: application/octet-stream;
 name="external.patch"
Content-Disposition: attachment;
 filename="external.patch"
Content-Transfer-Encoding: base64
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--Multipart_Fri__20_Dec_2002_17:59:13_+0100_09167aa8--