http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59196
Bug ID: 59196 Summary: ./configure --with=cpu is broken for some m68k targets Product: gcc Version: 4.6.4 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: miro.kropacek at gmail dot com I've found a small bug in GCC source code. At line 631 in gcc-4.6.4/gcc/config/m68k/m68k.c is: m68k_tune_flags = all_devices[dev]->flags; but should be: m68k_tune_flags = all_devices[dev].flags; you can see this if you configure gcc with --with-cpu=m68020-60 (or -40).