Suggested fix from jtalkington@users.sf.net.
Suggested fix from jtalkington@users.sf.net.

See bug #765227.

* lib/internal.h:
  (FASTCALL, PTRFASTCALL): only define these macros for the GNU C compiler
    on i386 platforms. apprently, they do not work well on PPC ports.

PKRoma/expat,PKRoma/expat,PKRoma/expat,PKRoma/expat