https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88115
--- Comment #9 from James Y Knight <foom at fuhm dot net> --- Proposed patch posted for the itanium-cxx-abi: https://github.com/itanium-cxx-abi/cxx-abi/pull/115/files using the syntax: u <source-name> <template-arg>* E And to Clang, to use that syntax: https://reviews.llvm.org/D93922 I hope both GCC and Clang can do the same thing here.