Failing tests are:
[-] UTF-8 case 3: Expected movement by -1 chars, actually moved by 0 chars: "\xdf"
[-] UTF-8 case 4: Expected movement by 0 chars, actually moved by -1 chars: "\xdf\xbf"
[-] UTF-8 case 5: Expected movement by -1 chars, actually moved by 0 chars: "\xef"
[-] UTF-8 case 6: Expected movement by -2 chars, actually moved by -1 chars: "\xef\xbf"
[-] UTF-8 case 7: Expected movement by 0 chars, actually moved by -2 chars: "\xef\xbf\xbf"
[-] UTF-8 case 8: Expected movement by -1 chars, actually moved by 0 chars: "\xf7"
[-] UTF-8 case 9: Expected movement by -2 chars, actually moved by -1 chars: "\xf7\xbf"
[-] UTF-8 case 10: Expected movement by -3 chars, actually moved by -2 chars: "\xf7\xbf\xbf"
[-] UTF-8 case 11: Expected movement by 0 chars, actually moved by -3 chars: "\xf7\xbf\xbf\xbf"
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.
