[cfe-dev] Warnings when building with gcc-4.5

[Mulder, Jonathan]

Hello all,

I have been compiling clang using the stock gcc on apple (4.2.1) for awhile
with no issues or warnings, but now I am trying to compile clang using the
gcc 4.5.0 release, and I am getting a bunch of warnings of this variety.

llvm[4]: Compiling ParseExprCXX.cpp for Debug build
ParseExprCXX.cpp: In member function ‘clang::Parser::OwningExprResult
clang::Parser::ParseCXXAmbiguousParenExpression(clang::Parser::ParenParseOption&,
clang::Parser::TypeTy*&, clang::SourceLocation, clang::SourceLocation&)’:
ParseExprCXX.cpp:1774:54: warning: converting ‘false’ to pointer type for
argument 4 of ‘clang::Parser::OwningExprResult
clang::Parser::ParseCastExpression(bool, bool, bool&,
clang::Parser::TypeTy*)’

llvm[2]: Compiling ExecutionEngineTest.cpp for Debug build
ExecutionEngineTest.cpp: In member function ‘virtual
void<unnamed>::ExecutionEngineTest_ForwardGlobalMapping_Test::TestBody()’:
ExecutionEngineTest.cpp:52:3: warning: passing NULL to non-pointer argument
3 of ‘static testing::AssertionResult
testing::internal::EqHelper<true>::Compare(const char*, const char*, const
T1&, T2*) [with T1 = int, T2 = void]’

Where they are either booleans (generally false values) being converted to
pointer types, or the latter of passing NULL to non-pointer types.  If you
could enlighten me as to the proper way to silence these warning I would be
happy to go through them all and submit a patch.

Thanks for any insight on how to solve this,
Jon
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