header-conflict.patch

--- openvpn3-core/openvpn/dco/ovpn_dco_linux.h  2025-08-25 21:03:54.229279408 -0500
+++ openvpn3-core/openvpn/dco/ovpn_dco_linux.h.new      2025-08-25 21:09:39.078857445 -0500
@@ -239,7 +239,7 @@ enum ovpn_netlink_packet_attrs {
        OVPN_PACKET_ATTR_MAX = __OVPN_PACKET_ATTR_AFTER_LAST - 1,
 };

-#ifndef IFLA_OVPN_MODE
+#if LINUX_VERSION_CODE < KERNEL_VERSION(6, 15, 0)
 enum ovpn_ifla_attrs {
        IFLA_OVPN_UNSPEC = 0,
        IFLA_OVPN_MODE,