> > Build description = STABLE on sparc-sun-solaris2 (doozer)
> >
> > **** Building stage 3 compiler ... failed; relevant
> barfage is below.
> >
> > mv libHShaskell98.a.tmp libHShaskell98.a
> > mv: cannot access libHShaskell98.a.tmp
>
> I think the probable reason for this breakage is because the nightly
> build took 31 hours - so the next day's build had already begun well
> before this one finished, causing some conflicts of file ownership.
>
> Are there any suggestions for reducing the total build time?
> Ideally I'd like it to take less than 18 hours (since I have a
> nightly build of nhc98 and hat on the same machine taking 6 hours),
> but anything up to 24 would be acceptable.
Things that speed up a build are:
- use the native code generator (-fasm). We usually turn
this off in stage 3 for the extra 2% performance, though.
- make sure SPLIT_OBJS is off except for stage 3.
- turning off -DDEBUG and -dcore-lint will net some speed
- make sure the profiling libs are only built in stage 3
Turning off -O is false economy, because building the libraries and the
following stage will take twice as long.
If all else fails, you can do two stages instead of three: just set
omit_stage3=YES, and rearrange the options so that stage 2 is your
"build everything with maximum performance" build.
Cheers,
Simon
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