1.0.3.22: fix with-pinned-object buglets

1.0.3.22: fix with-pinned-object buglets
 * on ppc types and variables were unused, which was causing a warning
   which was getting promoted to an error. make them ignorable.
 * #+(or x86 x86-64) -> #!+(or x86 x86-64) which should help building
   from non sbcl hosts.
 * also fix indentation in timeval struct definition