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-rw-r--r--source/net_common.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/source/net_common.c b/source/net_common.c
index 040a104..7373341 100644
--- a/source/net_common.c
+++ b/source/net_common.c
@@ -976,7 +976,9 @@ static SOCKET UDP_OpenSocket( const char *iface, int port ) {
switch( net_ignore_icmp->integer ) {
case -1: pmtudisc = IP_PMTUDISC_WANT; break;
case -2: pmtudisc = IP_PMTUDISC_DO; break;
+#ifdef IP_PMTUDISC_PROBE
case -3: pmtudisc = IP_PMTUDISC_PROBE; break;
+#endif
}
#endif // USE_PMTUDISC
}