All CentOS 7 builds on Patchew are showing this warning:

   WARNING: Use of SDL 1.2 is deprecated and will be removed in
   WARNING: future releases. Please switch to using SDL 2.0

Update the packages so that the warning goes away and the more
interesting SDL2 code is compiled instead.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
 tests/docker/dockerfiles/centos7.docker | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/docker/dockerfiles/centos7.docker b/tests/docker/dockerfiles/centos7.docker
index e0f18f5..12a61fe 100644
--- a/tests/docker/dockerfiles/centos7.docker
+++ b/tests/docker/dockerfiles/centos7.docker
@@ -24,7 +24,7 @@ ENV PACKAGES \
     nettle-devel \
     perl-Test-Harness \
     pixman-devel \
-    SDL-devel \
+    SDL2-devel \
     spice-glib-devel \
     spice-server-devel \
     tar \
-- 
1.8.3.1