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GCC: Guard some gcc flags so they're used when available and needed.

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This commit is contained in:
Gabe Black 2011-11-09 21:48:28 -08:00
parent 472645d62a
commit 2ee59cee1b
2 changed files with 5 additions and 3 deletions
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1
SConstruct
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@ -487,6 +487,7 @@ if main['GCC']:
# Note CCVERSION doesn't work here because it is run with the CC
# before we override it from the command line
gcc_version = readCommand([main['CXX'], '-dumpversion'], exception=False)
main['GCC_VERSION'] = gcc_version
if not compareVersions(gcc_version, '4.4.1') or \
not compareVersions(gcc_version, '4.4.2'):
print 'Info: Tree vectorizer in GCC 4.4.1 & 4.4.2 is buggy, disabling.'

7
src/SConscript
View file

@ -51,7 +51,7 @@ Export('env')
build_env = [(opt, env[opt]) for opt in export_vars]
from m5.util import code_formatter
from m5.util import code_formatter, compareVersions
########################################################################
# Code for adding source files of various types
@ -851,8 +851,9 @@ def makeEnv(label, objsfx, strip = False, **kwargs):
swig_env.Append(CCFLAGS='-Wno-uninitialized')
swig_env.Append(CCFLAGS='-Wno-sign-compare')
swig_env.Append(CCFLAGS='-Wno-parentheses')
swig_env.Append(CCFLAGS='-Wno-unused-label')
swig_env.Append(CCFLAGS='-Wno-unused-but-set-variable')
if compareVersions(env['GCC_VERSION'], '4.6.0') != -1:
swig_env.Append(CCFLAGS='-Wno-unused-label')
swig_env.Append(CCFLAGS='-Wno-unused-but-set-variable')
werror_env = new_env.Clone()
werror_env.Append(CCFLAGS='-Werror')