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From: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
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Date: Fri, 20 Jul 2012 12:28:29 +0200
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Subject: Broken parallel build of gcc*
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Hi,

some of the recent changes seem to break the parallel build of the gcc*
recipes which are sharing a same source directory:

| $ ./bitbake gcc-cross-initial gcc-cross-intermediate gcc-cross -c cleansstate
| $ BB_NUMBER_THREADS=3 ./bitbake gcc-cross-initial gcc-cross-intermediate gcc-cross
| ...
| NOTE: package gcc-cross-initial-4.7.1.0+git1+d07e24f4ab59f264d68d21838795349faab5dede-r7: task do_unpack: Started
| NOTE: package gcc-cross-4.7.1.0+git1+d07e24f4ab59f264d68d21838795349faab5dede-r7: task do_unpack: Started
| NOTE: package gcc-cross-initial-4.7.1.0+git1+d07e24f4ab59f264d68d21838795349faab5dede-r7: task do_unpack: Succeeded
| ERROR: Error executing a python function in ...recipes-devtools/gcc/gcc-cross_4.7.bb:
| OSError: [Errno 39] Directory not empty: '...tmp/work-shared/gcc-4.7.1.0+git1+d07e24f4ab59f264d68d21838795349faab5dede-r7/git/'
| NOTE: package gcc-cross-4.7.1.0+git1+d07e24f4ab59f264d68d21838795349faab5dede-r7: task do_unpack: Failed

It seems that the work-shared/ directory is not locked and cleaned when
starting the second unpack.



Enrico