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scons: Whitelist useful environment variables

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Scons normally removes all environment variables that aren't
whitelisted from the build environment. This messes up things like
ccache, distcc, and the clang static analyzer. This changeset adds the
DISTCC_, CCACHE_, and CCC_ prefixes to the environment variable
whitelist.
This commit is contained in:
Andreas Sandberg 2013-01-07 13:05:39 -05:00
parent 694a81e994
commit 4c06be60fc
1 changed files with 9 additions and 1 deletions
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10
SConstruct
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@ -183,9 +183,17 @@ use_vars = set([ 'AS', 'AR', 'CC', 'CXX', 'HOME', 'LD_LIBRARY_PATH',
'LIBRARY_PATH', 'PATH', 'PKG_CONFIG_PATH', 'PYTHONPATH',
'RANLIB', 'SWIG' ])
use_prefixes = [
"M5", # M5 configuration (e.g., path to kernels)
"DISTCC_", # distcc (distributed compiler wrapper) configuration
"CCACHE_", # ccache (caching compiler wrapper) configuration
"CCC_", # clang static analyzer configuration
]
use_env = {}
for key,val in os.environ.iteritems():
if key in use_vars or key.startswith("M5"):
if key in use_vars or \
any([key.startswith(prefix) for prefix in use_prefixes]):
use_env[key] = val
main = Environment(ENV=use_env)