configure for a FreeBSD/Sparc64 target now forces a default value of ultrasparc for -mcpu. This means that the default target defines are never used, one of which is __sparc64__ as needed by a lot of FreeBSD sources. As such, gcc-4 cannot build FreeBSD/Sparc64.
-- Summary: FreeBSD __sparc64__ define no longer exists Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: regression AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: uberlord at gentoo dot org GCC build triplet: sparc64-gentoo-freebsd6.2 GCC host triplet: sparc64-gentoo-freebsd6.2 GCC target triplet: sparc64-gentoo-freebsd6.2 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33331