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Add -Wno-missing-field-initializers if needed

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GCC with -Wmissing-field-initializers warns for a={}, but this is a
common construct in Rebirth code to zero-initialize an entire structure.
Users might add -Wmissing-field-initializers or a group option which
enables -Wmissing-field-initializers, so add code to explicitly disable
this warning when the compiler rejects this form of initialization.
This commit is contained in:
Kp 2015-01-15 04:30:03 +00:00
parent ab326e9c8b
commit 95aaf09ae0
1 changed files with 10 additions and 0 deletions
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10
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@ -277,6 +277,16 @@ int A<int>::a(){return 1;}
return
self.Compile(context, text='int a();', msg='whether C++ compiler accepts -Wredundant-decls', testflags=f)
@_custom_test
def check_compiler_missing_field_initializers(self,context):
f = {'CXXFLAGS' : [get_Werror_string(context.env['CXXFLAGS']) + 'missing-field-initializers']}
text = 'struct A{int a;};'
main = 'A a{};(void)a;'
if not self.Cxx11Compile(context, text=text, main=main, msg='whether C++ compiler warns for {} initialization', testflags=f, expect_failure=True) or \
self.Cxx11Compile(context, text=text, main=main, msg='whether C++ compiler understands -Wno-missing-field-initializers', successflags={'CXXFLAGS' : ['-Wno-missing-field-initializers']}) or \
not self.Cxx11Compile(context, text=text, main=main, msg='whether C++ compiler always errors for {} initialization', expect_failure=True):
return
raise SCons.Errors.StopError("C++ compiler errors on {} initialization, even with -Wno-missing-field-initializers")
@_custom_test
def check_attribute_error(self,context):
"""
help:assume compiler supports __attribute__((error))