I32 dopoptosub_at _((PERL_CONTEXT* cxstk, I32 startingblock));
void save_lines _((AV *array, SV *sv));
OP *doeval _((int gimme, OP** startop));
+PerlIO *doopen _((const char *name, const char *mode));
I32 sv_ncmp _((SV *a, SV *b));
I32 sv_i_ncmp _((SV *a, SV *b));
I32 amagic_ncmp _((SV *a, SV *b));