The object library is libS.a; it should be moved
to /lib or /usr/lib.

The include file needed by programs using the
library is stdio.h; it should be moved (or copied)
to /usr/include; then it can be picked up by
the line
  #include <stdio.h>
in user programs.

The library programs can be recompiled by
  cc -O -c *.c
and then updated in the archive.
