Play with GCJX

I just saw Ranjit Mathew's diary, Miscellany, and the status of GCJ attracts me, so that I decided to take a try with GCJx. I wrote a small build script, which can automatically check out from CVS, build GCJX, and show you if it's completed or not.

GCJX worked very well with my test cases, and I even modified kaffe/libraries/javalib/Makefile.am.in to drive GCJX generating bytecode for Kaffe's API implementations. It seems to work, but I think I should take a look over the existing build process, according to kaffe/library/javalib/Makefile.am:

# Note: Makefile.am is generated from Makefile.am.in using 
# developers/update-class-list (called from developers/autogen.sh)
#
# Yes, it's slightly insane:
#
#   Makefile.am.in -> Makefile.am -> Makefile.in -> Makefile

Also, I found the kaffeawt building fault of Nano-X AWT backend. It would be better to introduce new rules for generating the separate jarball.

Ooops, I have to say again, GCJX rocks. Kudos to Tom Tromey!