support for v5.5.640 style version numbers

p4raw-id: //depot/utfperl@4705

1 files changed, 2 insertions, 4 deletions

diff --git a/gv.c b/gv.c
index e1e4ae081c..e2c63497ce 100644
--- a/gv.c
+++ b/gv.c
@@ -812,10 +812,8 @@ Perl_gv_fetchpv(pTHX_ const char *nambeg, I32 add, I32 sv_type)
     case ']':
 	if (len == 1) {
 	    SV *sv = GvSV(gv);
-	    (void)SvUPGRADE(sv, SVt_PVNV);
-	    sv_setpv(sv, PL_patchlevel);
-	    (void)sv_2nv(sv);
-	    SvREADONLY_on(sv);
+	    GvSV(gv) = SvREFCNT_inc(PL_patchlevel);
+	    SvREFCNT_dec(sv);
 	}
 	break;
     }