Changes for the Amiga 68k/PPC port:

   - added smakefile + SCOPTIONS
   - created malloc.h

 Be careful with compilation options, e.g.
 don't make use register parameters.

 Note: 68k version gets compiled by "smakefile",
       for the PPC version "smakefilePPC" has
       to be used. You have to delete the object
       files by hand, if you want to compile
       both versions to the same directory.

 --
 ARK, 7/Mar/99