[U-Boot] Fix for a build ?

[Sylvain Lamontagne]

Hi everybody,

We have recently installed an automated build system in our company
and occasionally there is a problem when U-Boot is built.
One build will work the other will not without any changes to the sources
(it is not: 1 work, then other fail... it is more like 3 may work the 4 will
not but the 5 will). Our build system guy says that the problem is probably
a race condition with a dependency in the U-Boot make.

Here is the error that trigger the failure.
*[09:23:58]:* */home/slamon/server/TeamCity/buildAgent/work/19b40828dc62d35d/build/u-boot-1.3.4/cpu/mpc5xxx/.depend:73:
*** multiple target patterns. Stop.*
*[09:23:58]:* *make: ***
[/home/slamon/server/TeamCity/buildAgent/work/19b40828dc62d35d/build/u-boot-1.3.4/cpu/mpc5xxx/start.o]
Error 2*
*[09:23:58]:* */home/slamon/server/TeamCity/buildAgent/work/19b40828dc62d35d/build/u-boot-1.3.4/cpu/mpc5xxx/.depend:73:
*** multiple target patterns. Stop.*
*[09:23:58]:* *make: *** Waiting for unfinished jobs....*
*[09:23:58]:* *make: ***
[/home/slamon/server/TeamCity/buildAgent/work/19b40828dc62d35d/build/u-boot-1.3.4/cpu/mpc5xxx/libmpc5xxx.a]
Error 2*
*[09:24:01]:* *Process exited with code 2*

It is not extremely problematic because everything is automated and next
build after the failing one will work (when it is this error), but it's only
that we get a notification email when a build fail and we are afraid that
our developers will take the failure as a "Boy Who Cried Wolf"... if you
know what I mean.

Is there a way to fix this ? It could be putting some "sleep" somewhere...

Any suggestion ?

Sylvain

* Also, upgrading U-Boot is not an option... since we don't have the need
nor resources to port a new version of U-Boot to this product. So please
don't suggest that.