PERL_CALLCONV I32 Perl_whichsig(pTHX_ char* sig);
PERL_CALLCONV void Perl_write_to_stderr(pTHX_ const char* message, int msglen);
PERL_CALLCONV int Perl_yyerror(pTHX_ char* s);
-#ifdef USE_PURE_BISON
-PERL_CALLCONV int Perl_yylex_r(pTHX_ YYSTYPE *lvalp, int *lcharp);
-#endif
PERL_CALLCONV int Perl_yylex(pTHX);
PERL_CALLCONV int Perl_yyparse(pTHX);
PERL_CALLCONV int Perl_yywarn(pTHX_ char* s);