Apd |char* |scan_version |char *vstr|SV *sv
Apd |SV* |new_version |SV *ver
Apd |SV* |upg_version |SV *ver
-Apd |SV* |vnumify |SV *sv|SV *vs
-Apd |SV* |vstringify |SV *sv|SV *vs
+Apd |SV* |vnumify |SV *vs
+Apd |SV* |vstringify |SV *vs
+Apd |int |vcmp |SV *lvs|SV *rvs
p |PerlIO*|nextargv |GV* gv
Ap |char* |ninstr |const char* big|const char* bigend \
|const char* little|const char* lend