file gcc/config/rs6000/aix61.h and gcc/config/rs6000/aix53.h are missing. gcc/config.gcc doesn't manage aix6.1,
-- Summary: GCC is not ported to AIX 5.3 / AIX 6.1 Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: Laurent dot Vivier at bull dot net GCC host triplet: powerpc-ibm-aix6.1.0.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35481