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Add -fstrict-aliasing and -Wstrict-aliasing compilation flags, to catch some potential strict aliasing violations earlier

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This commit is contained in:
Gustavo J. A. M. Carneiro
2010-06-17 09:56:38 +01:00
parent 498c1d27fb
commit d76d69498a
1 changed files with 12 additions and 6 deletions
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18
wscript
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@@ -421,12 +421,18 @@ def configure(conf):
conf.env.append_value('CCFLAGS', conf.env['CXXFLAGS'])
conf.env.append_value('CCDEFINES', conf.env['CXXDEFINES'])
if env['COMPILER_CXX'] == 'g++' and 'CXXFLAGS' not in os.environ:
if conf.check_compilation_flag('-Wno-error=deprecated-declarations', mode='cxx'):
env.append_value('CXXFLAGS', '-Wno-error=deprecated-declarations')
if env['COMPILER_CC'] == 'gcc' and 'CCFLAGS' not in os.environ:
if conf.check_compilation_flag('-Wno-error=deprecated-declarations', mode='cc'):
env.append_value('CCFLAGS', '-Wno-error=deprecated-declarations')
def add_gcc_flag(flag):
if env['COMPILER_CXX'] == 'g++' and 'CXXFLAGS' not in os.environ:
if conf.check_compilation_flag(flag, mode='cxx'):
env.append_value('CXXFLAGS', flag)
if env['COMPILER_CC'] == 'gcc' and 'CCFLAGS' not in os.environ:
if conf.check_compilation_flag(flag, mode='cc'):
env.append_value('CCFLAGS', flag)
add_gcc_flag('-Wno-error=deprecated-declarations')
add_gcc_flag('-fstrict-aliasing')
add_gcc_flag('-Wstrict-aliasing')
# append user defined flags after all our ones
for (confvar, envvar) in [['CCFLAGS', 'CCFLAGS_EXTRA'],