https://gcc.gnu.org/bugzilla/show_bug.cgi?id=83014
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #8 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Created attachment 42695 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=42695&action=edit gcc8-pr83014.patch Untested fix. I believe this is because on mingw host HOST_LONG_LONG_FORMAT is redefined to "I64", but that is a Microsoft-ism that pp_printf of course doesn't handle. pp_unsigned_wide_integer or pp_scalar it uses should handle this fine by using the host sprintf into a temporary buffer and then just appending the digit buffer. As this needs mingw host, I can't really test whether it fixes this though, can only bootstrap/regtest it on linux.