[Bug c++/69953] [5/6 Regression] Using lto causes gtkmm/gparted and gtkmm/inkscape compile to fail

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69953

--- Comment #38 from Martin Liška <marxin at gcc dot gnu.org> ---
So downloading the package and testing that with problematic 6.3 does not
reproduce. Can you please verify you have really GCC 6.4? If so, would it be
possible to create a virtual machine or a Docker image which I can replay and
thus reproduce?