[cfe-commits] [libc++][patch] Fix warning flags for CMake builds

[Andrew C. Morrow]

Hi -

The current top level CMakeLists.txt for libc++ adds warning flags to
a variable named LIBCXX_WARNING_FLAGS, but then uses
LIBCXX_CXX_WARNING_FLAGS when it calls add_definitions, so the flags
are not actually added to the build. The attached patch changes
LIBCXX_WARNING_FLAGS to LIBCXX_CXX_WARNING_FLAGS.

Thanks,
Andrew
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