https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120905
--- Comment #23 from TCH <tch at protonmail dot com> --- Created attachment 61970 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=61970&action=edit Fixes all of the errors of compiling GCC9 on Solaris 10 SPARC GCC9 can be compiled with the same way, with the same changes. (Included in the attached patch.) The only difference compared to 6, 7 and 8, that GCC9 obsoleted Solaris 10, so the flag '--enable-obsolete' must be passed to './configure'. But that's it.