1diff --git a/Socket6.xs b/Socket6.xs
2index 05c791c..058e9d9 100644
3--- a/Socket6.xs
4+++ b/Socket6.xs
5@@ -105,10 +105,6 @@ const struct in6_addr in6addr_loopback = IN6ADDR_LOOPBACK_INIT;
6 #define HAVE_INET_PTON 1
7 #endif
8
9-#ifndef HAVE_PL_SV_UNDEF
10-#define PL_sv_undef sv_undef
11-#endif
12-
13 static int
14 not_here(char *s)
15 {
16--
172.16.3
18