mirror of git://gcc.gnu.org/git/gcc.git
47 lines
2.0 KiB
Plaintext
47 lines
2.0 KiB
Plaintext
Things libgcj hackers should know
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If you want to hack on the libgcj files you need to be aware of the
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following things. There are probably lots of other things that should be
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explained in this HACKING file. Please add them if you discover them :)
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--
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A lot of the standard library files come from the GNU Classpath project.
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<http://www.gnu.org/software/classpath/>
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The libgcj and Classpath project have officially merged, but the merge
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is not yet complete. Our eventual goal is for Classpath to be an upstream
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source provider for libgcj, however it will be some time before this becomes
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reality: libgcj and Classpath have different implementations of many core
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java classes. In order to merge them, we need to select the best (most
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efficient, cleanest) implementation of each method/class/package, resolve
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any conflicts created by the merge, and test the final result.
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The merged files can be recognized by the standard Classpath copyright
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comments at the top of the file. If you make changes to these files then
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you should also send a patch to the classpath mailinglist.
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<http://mail.gnu.org/mailman/listinfo/classpath/>
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<mailto:classpath@gnu.org>
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If you merge a libgcj class with a classpath class then you must update the
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copyright notice at the top of the file so others can see that this is a
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shared libgcj/classpath file.
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--
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If you need to add new java files to libgcj then you have to edit the
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Makefile.am file in the top (libjava) directory. And run automake.
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But note the following (thanks to Bryce McKinlay):
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> Do you know the magic dance I have to do when adding files to Makefile.am
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> so they will appear in Makefile.in and finally in the user generated
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> Makefile?
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Yup, you need the magic libgcj automake ;-)
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<ftp://ftp.freesoftware.com/.0/sourceware/java/automake-gcj-1.4.tar.gz>
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Install that (dont worry, it should still work for other projects), add your
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files to the Makefile.am, then just type "automake" and it will regenerate the
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Makefile.in. Easy!
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