libtheora: don't build examples

Original motivation for this was that they use ftime(3), an obsolete
function that caused the build to fail for NetBSD, but I think we
should just disable them everywhere, because it's unlikely people need
the compiled examples to be installed on their system.

I did a search for the only useful-sounding example, png2theora, on
<https://codesearch.debian.net/>, and the only use I found of it was
blktrace, which can use either png2theora or ffmpeg.  Our own blktrace
package doesn't depend on libtheora anyway.

OpenSUSE and Void Linux both also disable the examples.

0 files changed, 0 insertions, 0 deletions