https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61536
--- Comment #12 from Ramana Radhakrishnan <ramana at gcc dot gnu.org> --- (In reply to Paolo Carlini from comment #9) > Well, up to you really: maybe operator!= is special for you because it just > thinly wraps operator== which is exported for you. If adding back *only* > that additional export under the macro works, all your tests are fine, it > would be great. Otherwise, just revert. Sorry again for the breakage. Hmm, looks like the patchlet might be enough to do the trick. It looks like I misread the logs. Apologies, the link time failure was actually with == in In function `std::type_info::operator!=(std::type_info const&) const': /work/gcc/libstdc++-v3/testsuite/18_support/type_info/hash_code.cc:51: undefined reference to `std::type_info::operator==(std::type_info const&) const' Looks like it fixes my issue on ARM. regards Ramana