Unity build is not parallel safe (-j 4 fails)

[Elliot Murphy]

Trying to build unity trunk (r1497) with make -j4 some of the build fails due to misisng unity-core-4.0, which is built a few seconds later. Building in serial rather than parallel completes just fine.
Probably only reproducible on pristine builds.

Linking CXX executable test-minimize-handler
/usr/bin/ld: cannot find -lunity-core-4.0

Linking CXX executable test-input-remover
/usr/bin/ld: cannot find -lunity-core-4.0

Are the two specific targets that I saw error out, but others may be missing a dependency as well.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: unity 4.12.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.0.0-10.16-generic 3.0.4
Uname: Linux 3.0.0-10-generic i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,scale,session,unityshell]
Date: Tue Sep 6 17:49:39 2011
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to oneiric on 2011-08-10 (27 days ago)

[Omer Akram (om26er)]

failed for me with -j2 as well.

[Omer Akram (om26er)]

-j4 works fine with latest unity.