Travis includes gnutls in the default package set, but it is an outdated version linkng to an incompatible libffi version. The 'update: true' stanza causes the brew toolchain to be updated but not the installed formula. It is possible to run 'brew upgrade' to update installed formula, but this is very slow adding more than 5 minutes to the build time. Listing the gnutls package explicitly causes it to be updated without extending the build time. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- Pushed as a CI build fix .travis.yml | 1 + 1 file changed, 1 insertion(+) diff --git a/.travis.yml b/.travis.yml index 29097cab6c..7c8a114054 100644 --- a/.travis.yml +++ b/.travis.yml @@ -16,6 +16,7 @@ addons: - yajl - glib - docutils + - gnutls matrix: include: -- 2.25.3