gcc+gcj build-times?

[Bryce McKinlay]

Andreas Tobler wrote:
> But, I do still not understand why we do this step again and again. 
> Means, the first time is ok :) but when I do a (g)make check, the 
> compile_classpath is executed again and the target compile-classes is 
> built again. Although I didn't change anything.
> The same happens if I do an (g)make install or another (g)make after 
> changing a non dependant file. This is regardless of the os I try, it 
> happens on linux, darwin, solaris or as mentioned on freebsd. Freebsd 
> shows as most annoying since it is develwork in progress and it is the 
> slowest machine.
>
> I'll need to sit down and debug a bit ....

Yes, I've also found it be annoying that gen-classlist.sh is run every 
time "make" is run. It would be great to find a way to fix it, as it 
would save a lot of time when doing incremental rebuilds.

Bryce