d[tmp] = '\0';
if (bad_proto && ckWARN(WARN_SYNTAX))
Perl_warner(aTHX_ packWARN(WARN_SYNTAX),
- "Illegal character in prototype for %s : %s",
- SvPVX(PL_subname), d);
+ "Illegal character in prototype for %"SVf" : %s",
+ PL_subname, d);
SvCUR(PL_lex_stuff) = tmp;
have_proto = TRUE;