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Re: make -j broken
- To: lucier at math dot purdue dot edu (Brad Lucier)
- Subject: Re: make -j broken
- From: Toshiyasu Morita <tm at netcom dot com>
- Date: Wed, 26 Aug 1998 13:14:55 -0700 (PDT)
- Cc: egcs-bugs at cygnus dot com
>
> It would be very nice for those of us with multiprocessor systems if, e.g.,
>
> % make -j bootstrap >& ERRS &
>
> worked to build egcs. I've never had this work (I tried today with
> the latest mainline code), but it would really cut down on the wall-clock
> times for compiles.
>
> Brad Lucier lucier@math.purdue.edu
>
"make -j" specifies the top-level make do parallel builds. If you look
at the top-level makefile, it just builds the various stages of gcc,
which are serially dependent on each other, so they can't be built
in parallel.
Toshi