[portability] nistp224 and hash127 problems on Linux/i686

 Greetings,

 Problem: current GNU "uname" commands show "i686" instead of "i386"
as the processor family.

 Impact: print-cc.sh and print-opt.sh do not detect the correct
systype on these systems when the 'auto' settings are used, and produce
compiler settings that make incorrect code. This happens in both the
nistp224 and the hash127 packages.

 Workaround: examine print-cc.sh and print-opt.sh, and set conf-cc
and conf-opt specifically.

 Proposed fix:
  - document the current behaviour
  - update print-cc.sh and print-opt.sh to take it into account ;
maybe exit with an error if the auto settings are used and no known
systype can be found.

 I have run into trouble compiling nistp224 and hash127 out-of-the-box
on an Alpha (21164) running FreeBSD-4.6-STABLE, too; but I don't know
that platform well (either hardware or software) and I will investigate
before submitting a more complete report.

-- 
 Ska