ia64-freebsd is officially dead, and sparc64-freebsd has not been able
to build GCC for half a dozen years (or so) and is essentially end of
life.
The default per gcc/config/i386/freebsd.h has been i586 for a while,
so i486-freebsd can go as well. (We still have i686-freebsd.)
contrib/ChangeLog:
* config-list.mk: Remove i486-freebsd4, ia64-freebsd6, and
sparc64-freebsd6.
Gerald Pfeifer
306ff653a3