[OE-core] Broken parallel build of gcc*

[Richard Purdie]

On Fri, 2012-07-20 at 13:53 +0200, Enrico Scholz wrote:
> Richard Purdie
> <richard.purdie-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r at public.gmane.org>
> writes:
> 
> > Encrico: Which DISTRO are you using and do you use rm_work*.bbclass?
> 
> yes; rm_old_work seems to cause the problem.  Task uses ${PN} and was
> declared with
> 
>   addtask rm_old_work before do_unpack
> 
> which causes different base hashes.
> 
> 
> Is there a way to exclude such tasks from the signature handling?

The easiest option is probably something like:

do_rm_old_works[vardepexclude] = "PN"

but this will trigger rebuilds depending on whether rm_work_old is
turned on or off.

The more advanced way to fix this would be in:

http://git.yoctoproject.org/cgit.cgi/poky/tree/meta/lib/oe/sstatesig.py

probably something like:

if dep.endswith("do_rm_old_works"):
    return False

before the first check.

Cheers,

Richard