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-rwxr-xr-xemergencyd.pl2
1 files changed, 1 insertions, 1 deletions
diff --git a/emergencyd.pl b/emergencyd.pl
index c37b938..e1d1189 100755
--- a/emergencyd.pl
+++ b/emergencyd.pl
@@ -97,7 +97,7 @@ if ( defined($opts{p}) ) {
socket my $socket, PF_INET6, SOCK_DGRAM, $proto
or die "Can't create socket: $!";
-if ( defined(IPV6_V6ONLY) ) {
+if ( defined(*IPV6_V6ONLY{CODE}) ) {
setsockopt $socket, IPPROTO_IPV6, IPV6_V6ONLY, 0
or die "Can't set IPV6_V6ONLY option to 0: $!";
}