On 04/01/12 18:12, Christian Jaeger wrote: > Hi > > Many Debian packages don't use more than 1 CPU even when passing -j$n > to dpkg-buildpackage with $n > 1.
I'm not sure if that's the correct way to set it - I've always set it in DEBIAN_BUILD_OPTIONS but I haven't checked lately to see if it's still the correct way to do it. > > (Concretely, my build command is: > dpkg-buildpackage -uc -us -b -r'fakeroot -u' -j2 ) > > I'm surprised that this is the case even in today's 'testing', > considering that most machines are multi-core now and I would expect > maintainers to be impatient themselves. Anyway, today I've noticed the > following line when building some package: > > make[1]: warning: jobserver unavailable: using -j1. Add `+' to > parent make rule. > > Googling found me > > http://lists.gnu.org/archive/html/help-make/2011-03/msg00045.html > > which mentions to use $$(MAKE) instead of $(MAKE). > > I haven't looked into the package build files yet because I'm lazy and > am usually put off by the usual complexity of builds. I'm asking > myself whether I should look into these packages and attempt to apply > the above fix somewhere. Then I'm asking what others are doing to > remedy the situation. And in the end I decide to just at least dump > this information here in case it would be useful for someone who might > actually do something about it... > > Christian. > > If the particular package build system supports multi-processor builds (and as you point out, many don't) then "parallel=whatever" should work (in the DBO). It is (or was) in the policies somewhere. Sorry I can't be more precise at present. Cheers -- Iceweasel/Firefox extensions for finding answers to Debian questions:- https://addons.mozilla.org/en-US/firefox/collections/Scott_Ferguson/debian/ -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected] Archive: http://lists.debian.org/[email protected]
