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List:       poi-dev
Subject:    Re: GCJ Native Library Success
From:       "Andrew C. Oliver" <acoliver () apache ! org>
Date:       2002-11-16 22:53:04
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Cool.  I plan to apply this patch when I get back from the Apachecon + 
catchup time if no one else beats me to it!

I assume you're willing to donate your work to the project?

-Andy

TJ Mather wrote:

> Hi,
>
> I was able to get Apache POI to compile down to a shared library by
> compiling *.java -> *.class using Ant with Sun JDK, then running
> gcj -shared -o poi.so `cat classlist.txt` where the classlist contained
> the core HSSF files (not the ones that used Swing, etc)[1].  I had to
> compile FormulaParser.java, POIFSViewEngine.java, and HexRead.java to
> *.class using GCJ, because I got a "bad pc in exception_table" if I tried
> to compile the JDK *.class to *.so using GCJ.  Also note that *.java ->
> *.class using GCJ doesn't work for some *.java files.
>
> I was able to get the C++ native shared library to work with one of the
> test examples using an adaption of Martin's patch.  For more details on
> how to recreate the POI example in C++ see:
> http://tjmather.com/poifilter/
>
> The patch needed for POI to compile and run under GCJ is at
> http://tjmather.com/poifilter/gcjpoi.patch
>
> This is basically Martin's patch plus some fixes for the hpsf/*.java
> files required for ./build.sh compile to run, and (Object) typecast
> in poifs/dev/POIFSViewEngine.java required for GCJ to compile the
> shared library.
>
> -TJ
>
>
>
>
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