Try yet another IPv6 workaround for the Linux builds.

diff --git a/.travis.yml b/.travis.yml
index 5fef811a6af8803513d82bd5e4de4817401f5417..925b261feef817b22d17997c2006c2391a4c4f89 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,7 +11,9 @@ matrix:
     # Linux-specific build stuff
     - os: linux
       dist: focal
-      virt: lxd
+      virt: vm
+      sudo: required
+      before_script: sudo sh -c 'echo 0 > /proc/sys/net/ipv6/conf/all/disable_ipv6'
       addons:
         apt:
           packages: [libavahi-client-dev, libgnutls28-dev, zlib1g-dev]