[CMake] Correctly add LLVM compile definitions #30
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LLVM_DEFINITIONS is a string, not a list. This led to wrongly passed compile definition. See https://llvm.org/docs/CMake.html#embedding-llvm-in-your-project
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LLVM_DEFINITIONS is a string, not a list. This led to wrongly passed compile definition (like
-D_GLIBCXX_USE_CXX11_ABI="0 -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS", where the value escaping is wrong). We stumbled over this by suddenly getting weird error messages, because we tried to set_GLIBCXX_USE_CXX11_ABI=0, but is was already set to"0 -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS"earlier.This patch switches the define parsing like it is advised in the official LLVM documentation: https://llvm.org/docs/CMake.html#embedding-llvm-in-your-project