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The recent changes to define various std::exception_ptr functions inline included a change so that the definitions of those functions would be omitted for the ABI unstable gnu-versioned-namespace configuration. That change was incorrect, because the existing functions that are gated by the _GLIBCXX_EH_PTR_COMPAT macro are always needed even for the versioned namespace. This change introduces a new macro to control whether operator== is defined as deleted or not, distinct from the existing macro. The new macro is not defined for versioned namespace builds, but the old macro still is. libstdc++-v3/ChangeLog: * libsupc++/eh_ptr.cc (_GLIBCXX_EH_PTR_RELOPS_COMPAT): Define new macro. * libsupc++/exception_ptr.h (_GLIBCXX_EH_PTR_USED): Check new macro instead of _GLIBCXX_EH_PTR_COMPAT. (operator==): Likewise.
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