[Bug lto/69953] Using lto causes gtkmm/gparted and gtkmm/inkscape compile to fail

[trippels at gcc dot gnu.org]

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

--- Comment #6 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
markus@x4 tmp % g++ -flto -fPIC -DPIC -shared -nostdlib treeviewcolumn.i && nm
./a.out | grep _ZTVN3Gtk14TreeViewColumnE

000000000000b4d8 d _ZTVN3Gtk14TreeViewColumnE.lto_priv.2
markus@x4 tmp % g++  -fPIC -DPIC -shared -nostdlib treeviewcolumn.i && nm
./a.out | grep _ZTVN3Gtk14TreeViewColumnE

000000000000d648 V _ZTVN3Gtk14TreeViewColumnE