make samba3 make -j proof
jelmer at samba.org
Tue Oct 10 20:24:30 GMT 2006
On Tue, 2006-10-10 at 21:30 +0200, Björn JACKE wrote:
> sitting in a train today waiting for a samba compile I thought it
> might be quite a bit faster if it would be compilable parallelized. I
> saw that the changes neccessary in the Makefile to make this work are
> not very big. See attached patch. I tested the Makefile with make -j20
> without a problem. On a dual core machine the build is in fact twice
> as fast now with make -j2.
> I needed to replace the suffix rule in the makefile with a implicit
> pattern rule to be able to add dependencies to each resulting target.
> VERY ancient make versions might not cope with that but all machines
> that can cope with samba4's makefiles can cope with this, too. So I
> thing there's nothing to worry about.
Using '%' is going to break on /a lot/ of platforms. We don't use it in
Samba4 - I think it only works with GNU make.
Jelmer Vernooij <jelmer at samba.org> - http://samba.org/~jelmer/
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