#define PERL_5_9_PLUS
#endif
-#ifndef PERL_5_9_PLUS
+#if !defined(PERL_5_9_PLUS) && defined(PERL_IMPLICIT_CONTEXT)
/* These two are not exported from the core on Windows. With 5.9+
it's not an issue, because they're part of the PL_parser structure,
which is exported. On multiplicity/thread builds we can work