This question is only marginally Linux related, but since Linux javac
is so slow, it's a special concern for us :-)
>I have been trying to get javac (1.1.7 for linux) to recompile only
>those java-files newer than their class-files.
This stuff doesn't work very well. javac -depend is undependable, and
jikes' isn't much better.
If you're using jikes and you have a reasonably sized sourcebase,
you're better off just recompiling all the files everytime rather than
trying to selectively compile a subset.
I have a 20000 line project in 100+ files. Compiling everything with
jikes one file at a time takes about 2 minutes. Compiling them all in
one command takes 10 seconds. Compiling *two* files seperately takes
about 15 seconds - so for me, compiling everything everytime is better
than even trying to figure out which two files have changed.
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