travis: add build for Debian 9

Debian 9 ships the oldest versions of some of our dependent
packages so can highlight bugs not seen elsewhere. CentOS 7,
despite being quite old, has rebased some packages to much
newer versions.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>

diff --git a/.travis.yml b/.travis.yml
index e1e8cb4f80390592c479ce35a5340d5394fc9224..b243e3d5c4296f3b9a501ff53fd0c04b824c2860 100644 (file)
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,6 +32,13 @@ matrix:
         - MAKE_ARGS="syntax-check distcheck"
       script:
         - make -C ci/ ci-build@$IMAGE CI_MAKE_ARGS="$MAKE_ARGS"
+    - services:
+        - docker
+      env:
+        - IMAGE="debian-9"
+        - MAKE_ARGS="syntax-check distcheck"
+      script:
+        - make -C ci/ ci-build@$IMAGE CI_MAKE_ARGS="$MAKE_ARGS"
     - services:
         - docker
       env: