OP* newWHILEOP _((I32 flags, I32 debuggable, LOOP* loop,
I32 whileline, OP* expr, OP* block, OP* cont));
#ifdef USE_THREADS
-struct thread * new_struct_thread _((struct thread *t));
+struct perl_thread * new_struct_thread _((struct perl_thread *t));
#endif
PerlIO* nextargv _((GV* gv));
char* ninstr _((char* big, char* bigend, char* little, char* lend));