Implement parallel parsing support

This utilizes python's multiprocessing module.  The default number of threads
to be used is the same as the number of available processor cores, however,
you can manually set this with the BB_NUMBER_PARSE_THREADS variable.

(Bitbake rev: c7b3ec819549e51e438d293969e205883fee725f)

Signed-off-by: Chris Larson <chris_larson@mentor.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/bitbake/lib/bb/pysh/pyshyacc.py b/bitbake/lib/bb/pysh/pyshyacc.py
index 8bb9927321..3d6f54a58c 100644
--- a/bitbake/lib/bb/pysh/pyshyacc.py
+++ b/bitbake/lib/bb/pysh/pyshyacc.py
@@ -648,6 +648,7 @@ def p_error(p):
 try:
     import pyshtables
 except ImportError:
+    import os
     outputdir = os.path.dirname(__file__)
     if not os.access(outputdir, os.W_OK):
         outputdir = ''