Build fails on Proxmox

[Florent B.]

Hi,

I try to install Wireguard on Proxmox servers 5.4 (Debian Stretch),
running kernel 4.15.18-58 (pve-kernel-4.15.18-30-pve).

I use Wireguard DKMS from buster-backports, version 1.0.20200712.

Build fails on :

    /var/lib/dkms/wireguard/1.0.20200712/build/socket.c: In function
'send6':
    /var/lib/dkms/wireguard/1.0.20200712/build/socket.c:139:18: error:
'const struct ipv6_stub' has no member named 'ipv6_dst_lookup'; did you
mean       'ipv6_dst_lookup_flow'?
   dst = ipv6_stub->ipv6_dst_lookup_flow(sock_net(sock), sock, &fl,
                  ^~
    scripts/Makefile.build:322: recipe for target
'/var/lib/dkms/wireguard/1.0.20200712/build/socket.o' failed


How can I build Wireguard on this platform ?

Thank you.

Florent