https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64935
--- Comment #3 from Tobias Burnus <burnus at gcc dot gnu.org> --- (In reply to Tobias Burnus from comment #2) > The attached test case fails for me with > with the same message: > g++: error: test.ii: -fcompare-debug failure (length) That's with x86-64-gnu-linux in my case.