diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-01-31 22:19:12 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2013-01-31 22:19:12 +0000 |
| commit | 1983f54daebc5b4ba0ebb3fbc6ec0abb083f8908 (patch) | |
| tree | 429dfd1754c409d3e317d21e0d84475fd75410e7 /cmake | |
| parent | ac1b2e5550d395f8a150830d9513ee62d678597b (diff) | |
Add -Wno-nested-anon-types to -pedantic builds of LLVM. This Clang warning
catches uses of an extremely minor and widely-available C++ extension (which
every C++ compiler I could find supports, but EDG and Clang reject in strict
mode).
The diagnosed code pattern looks like this:
struct X {
union {
struct {
int a;
int b;
} S;
};
};
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174103 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'cmake')
| -rw-r--r-- | cmake/modules/HandleLLVMOptions.cmake | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/cmake/modules/HandleLLVMOptions.cmake b/cmake/modules/HandleLLVMOptions.cmake index bb1085c014..3cf1ef20e4 100644 --- a/cmake/modules/HandleLLVMOptions.cmake +++ b/cmake/modules/HandleLLVMOptions.cmake @@ -193,6 +193,10 @@ elseif( LLVM_COMPILER_IS_GCC_COMPATIBLE ) if (LLVM_ENABLE_PEDANTIC) add_llvm_definitions( -pedantic -Wno-long-long ) + check_cxx_compiler_flag("-Werror -Wnested-anon-types" CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG) + if( CXX_SUPPORTS_NO_NESTED_ANON_TYPES_FLAG ) + set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-nested-anon-types" ) + endif() endif (LLVM_ENABLE_PEDANTIC) check_cxx_compiler_flag("-Werror -Wcovered-switch-default" CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG) if( CXX_SUPPORTS_COVERED_SWITCH_DEFAULT_FLAG ) |