Parallel make unsafe

[broucaries]

hi,

I seems that
make -j16 all perl-build

fail in a lot of different place.

Could you try to investigate. Maybe it is a bug to report to automake

Bastien

[magick]

We can reproduce the problem on a CentOS 5.9 system with make 1:3.81-3. On our Fedora system with make 1:3.82-13 it consistently worked fine. Perhaps its a bug in make that has already been fixed in recent versions of make.

[broucaries]

I occurs about 1 on 10 try with make -j32 on a quad core.

I suppose it is a bug (or a feature) of automake.

It seems that coders does not depend (wait) on libmagickcore fully builded.

Bastien

[broucaries]

Any news of this ?

[magick]

The parallel make bug has existed for many years and it appears likely to be a race condition triggered by make or automake. If you think its an ImageMagick bug, let us know and we will investigate further.

[broucaries]

Please see automake bug here. same code is in coder.

We do not need to workarround it (workarround is ugly and probability of faillure is low). But I think we should document the problem

Upstream bug
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7328

Could you please also add comment to the upstream bug report and track it ?

Bastien