On Fri, 15 Sep 2017, Johan Alfredsson wrote:
OK, thanks. Is there a workaround for this issue on the gcc user side? (I guess I could always avoid using libstdc++ and go with libc++ instead.) I don't have any constraints when it comes to ABI breakage.
Then the easiest is for you to patch gcc so it mangles "normally" (remove the line #define TARGET_CXX_DECL_MANGLING_CONTEXT solaris_cxx_decl_mangling_context in gcc/config/sol2.h) and rebuild. Some alternatives are to hack the system headers so tm gets declared in the global namespace, or to provide aliases for all the libstdc++ symbols that involve tm/ldiv_t/...
-- Marc Glisse