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Re: Parallel build results

On Sat, Dec 01, 2007 at 09:21:33PM -0500, Daniel Schepler wrote:
> I finally got through the test builds of all the source packages in sid for 
> i386 using dpkg-buildpackage -j3 on a dual core machine.  The results as 
> before are at http://people.debian.org/~schepler/build-logs/bymaint.html .  
> Some statistics:

>    1014 succeeded, but with jobserver warnings

No that DEB_BUILD_OPTIONS="parallel=n" has been superseded by
dpkg-buildpackage -j, I am trying to fix the glibc package so that it
can be built in parallel.

Unfortunately I failed to get it built on parallel (whereas with
DEB_BUILD_OPTIONS it was possible), I am getting:

make[1]: warning: jobserver unavailable: using -j1.  Add `+' to parent make rule.

This basically means only the debian/rules file is run in parallel, the
real build is not, whereas with DEB_BUILD_OPTIONS it was the contrary.
You can imagine the difference in term of build time.

This is due to the following command:
        $(call logme, -a $(log_build), $(MAKE) -C $(DEB_BUILDDIR))

where logme is defined as:

define logme
(exec 3>&1; exit `( ( ( $(2) ) 2>&1 3>&-; echo $$? >&4) | tee $(1) >&3)

Any idea how to get this working for parallel builds with
dpkg-buildpackage -j? I fail to see a solution.

  .''`.  Aurelien Jarno	            | GPG: 1024D/F1BCDB73
 : :' :  Debian developer           | Electrical Engineer
 `. `'   aurel32@debian.org         | aurelien@aurel32.net
   `-    people.debian.org/~aurel32 | www.aurel32.net

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