[LLVMdev] Ideas for making llvm-config --cxxflags more useful

Schlottke-Lakemper, Michael m.schlottke-lakemper at aia.rwth-aachen.de
Mon Aug 3 10:40:32 PDT 2015

The only question I want to raise is, what about NDEBUG? There are headers that conditionalize on NDEBUG, which could lead to ABI incompatibility in the C++ API.

Is it something that can be fixed or would it be too complicated to handle?
It would be nice in general to be able to link a “Non assert” build of Clang with an “Assert" version of  LLVM (and vice-versa).

From my user perspective, it would be desirable to set as few flags as possible. NDEBUG is used outside of clang/llvm as well (including our software), so if it were returned by llvm-config, it would effectively preclude us from using llvm-config (as it would effectively turn off all checks even when desired).

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