config/m68k/m68kv4.mh, config/mips/{irix4.mh, irix5.mh,
mipsv4.mh}, config/sparc/sun4so2.mh (INSTALL): Removed, figured
out by autoconf.
* config/apollo68v.mh (RANLIB): Removed, figured out by autoconf.
* Makefile.in, configure.in: Converted to use autoconf
* aclocal.m4: New file, local autoconf macro definitions.
* configure: New file, generated with autoconf 2.3.
