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
When pixman is not installed (or too old), but virglrenderer is available and "configure" has been run with "--disable-system", the build currently aborts when trying to compile vhost-user-gpu (since it requires pixman). Let's skip the build of vhost-user-gpu when pixman is not installed or too old. Instead of adding CONFIG_PIXMAN, it is simpler to move the detection to pixman. Based on a patch by Thomas Huth. <thuth@redhat.com> Fixes: 9b52b17ba5 ("configure: Allow to build tools without pixman") Reported-by: Rafael Kitover <rkitover@gmail.com> Reported-by: Philippe Mathieu-Daudé <philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>