manojgupta added a comment. We also use Wno-enum-constexpr-conversion in ChromeOS. There are many packages that break with this warning. One of them is boost which is used in many other packages.
The errors in boost were: ./boost/mpl/aux_/integral_wrapper.hpp:73:31: error: integer value -1 is outside the valid range of values [0, 3] for this enumeration type [-Wenum-constexpr-conversion] ./boost/mpl/aux_/static_cast.hpp:24:47: note: expanded from macro 'BOOST_MPL_AUX_STATIC_CAST' # define BOOST_MPL_AUX_STATIC_CAST(T, expr) static_cast<T>(expr) ^ I do not think boost upstream has updated these files, I see they were last updated 3 years back. https://github.com/boostorg/mpl/blob/master/include/boost/mpl/aux_/static_cast.hpp and https://github.com/boostorg/mpl/blob/master/include/boost/mpl/aux_/integral_wrapper.hpp CHANGES SINCE LAST ACTION https://reviews.llvm.org/D150226/new/ https://reviews.llvm.org/D150226 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits