[OE-core] Reproducible build problem with BB_NUMBER_THREADS=8

[Henning Heinold]

On Tue, Nov 15, 2011 at 12:03:45PM +0100, Eric Bénard wrote:
> Hi,
> 
> I often meet a problem related to C++ headers which are not found
> (despite existing)n often when bitbake starts compiling mysql &
> directfb.
> I tested on 2 build hosts (both with Core i7, one i686 ubuntu, one
> x64_64 Fedora) and manage to reproduce the problem easily with
> BB_NUMBER_THREADS=8 in both cases.
> 
> The configuration is quite simple :
> angstrom setup script + beagleboard machine + bitbake qt4e-demo-image
> with
> PARALLEL_MAKE     = "-j6"
> BB_NUMBER_THREADS = "8"

Hi Eric,

I found another problem with the crosscompiler setup and c++,
while compile llvm with cmake.

In recipes-devtools/gcc/gcc-configure-cross.inc we set

EXTRA_OECONF_PATHS = "--with-local-prefix=${STAGING_DIR_TARGET}${target_exec_prefix} \
                      --with-gxx-include-dir=${target_includedir}/c++ \
                       --with-sysroot=${STAGING_DIR_TARGET} \
                       --with-build-sysroot=${STAGING_DIR_TARGET}"


which results in a headersearch path for c++

 .../usr/usr/include/c++

unfornatly I do not have the time to test it some more. But this little patch plus INC bumping
sovled it for my setup:

-EXTRA_OECONF_PATHS = "--with-local-prefix=${STAGING_DIR_TARGET}${target_exec_prefix} \
+EXTRA_OECONF_PATHS = "--with-local-prefix=${STAGING_DIR_TARGET} \


Bye Henning