Hey, On 27/11/13 23:06, Raphael Geissert wrote: > On Wednesday 27 November 2013 22:35:31 Raphael Geissert wrote: >> I believe that debhelper does that for you: > > Sigh, wrong reference, and now that I think about it it's very likely that > cdbs is the one using the value of DEB_BUILD_OPTIONS=parallel=8 > > class/langcore.mk defines DEB_PARALLEL, which is later used by makefile- > vars.mk
The way it works is: You set DEB_BUILD_OPTIONS=parallel=8 langcore.mk sets DEB_PARALLEL_JOBS = 8: ifneq (,$(filter parallel=%,$(DEB_BUILD_OPTIONS))) DEB_PARALLEL_JOBS ?= $(patsubst parallel=%,%,$(filter parallel=%,$(DEB_BUILD_OPTIONS))) endif And then makefile-vars.mk: DEB_MAKE_PARALLEL ?= $(and $(DEB_BUILD_PARALLEL),$(DEB_PARALLEL_JOBS),-j$(DEB_PARALLEL_JOBS)) That is an $(and ), so DEB_MAKE_PARALLEL becomes -j8 only if DEB_BUILD_PARALLEL is set. That is a flag that is to be set by the maintainer in debian/rules if the package supports parallel building. Since we don't set it in gtk+, DEB_MAKE_PARALLEL won't be set and thus -j8 won't be passed to make. If in the end make gets a -j8 flag, there is a bug somewhere, because that shouldn't be passed. See e.g. https://buildd.debian.org/status/fetch.php?pkg=gtk%2B3.0&arch=i386&ver=3.8.6-1&stamp=1382403236 which has a parallel=8 but as you can see CDBS doesn't invoke make with -j8. In any case it is my goal to enable parallel builds at least in our bigger packages (gtk+, glib, pango...) so I'll eventually look at this (hopefully soonish). Cheers, Emilio -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org