On Tue, 11 Jul 2006, Doug Cutting wrote:
Andi Vajda wrote:
I'd be interested in doing this but what is it that we're after in
'supporting gcj' actually ?
I think it would sufficient to:
1. Compile only .jar and .class with gcj (not .java).
2. Pass all unit tests on a single platform.
Just last week, a PyLucene user got it to work on Solaris. I have no access to
a Solaris machine to validate this. If I had my choice of platform, I'd pick
one of (in order of preference):
- Mac OS X (Intel or PPC)
- a recent Red Hat Linux since this is the one most gcj developers use
- Ubuntu 6.06
As for the version of gcj I'd suggest using:
- Mac OS X Intel : gcj 4.0.2 (heavily patched)
- Mac OS X PPC : gcj 3.4.6
- Red Hat Linux : I'd try 4.2.0 downgrading until I find one that works,
probably 4.1.1
- Ubuntu 6.06: gcj 3.4.6
Unless junit can be made to run compiled under gcj, I see some more work on
the unit tests side. This could be interesting too...
Even when only compiling .jar -> .so with gcj, a number of patches still
need to be applied:
http://svn.osafoundation.org/pylucene/trunk/patches.lucene
The patches to JavaCC-generated code should probably really become JavaCC
patches. Have you looked into that?
Yes, I filed bug 53 almost two years ago, it's not gone very far :(
https://javacc.dev.java.net/issues/show_bug.cgi?id=53
Most of the rest look like reasonable
changes to Lucene, except perhaps the "native matches", which looks a bit
fishy for Lucene's trunk.
The native match patches are required because the libgcj that comes with gcj
3.4.x doesn't provide a regular expressions implementation. This is solved in
PyLucene by using python's. I think gcj 4 comes with regex support but gcj 4
is not yet well supported on most platforms.
For the gcj platform story, see this pylucene-dev post I sent recently:
http://lists.osafoundation.org/pipermail/pylucene-dev/2006-June/001106.html
Andi..
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