#define MGf_TAINTEDDIR 1 /* PERL_MAGIC_envelem only */
#define MGf_MINMATCH 1 /* PERL_MAGIC_regex_global only */
+#define MGf_REQUIRE_GV 1 /* PERL_MAGIC_checkcall only */
#define MGf_REFCOUNTED 2
#define MGf_GSKIP 4 /* skip further GETs until after next SET */
#define MGf_COPY 8 /* has an svt_copy MGVTBL entry */