* Generate the plugins cache for the build tree during make all
   (if not cross-compiling).
 * Generate the plugins cache for the installation during make install
   (if not staging with DESTDIR).

The vout window provider may issue a series of several resize events in a row.
(e.g a user switching back and forth between two layouts in skins2)
Some events may then be wrongly discarded by xcb based on a check that doesn't
represent the latest situation.
The new design actually can accept all resizing events, and only processes the last event of a series of events detected by xcb. No filtering is needed in xcb.

This rgeatly reduces the changes that it's generated more than once,
if there are multiple concurrent VLC's, or if VLC crashes before exit.

As we now store the cache in ~/.cache, this has become quite useless.
In any case, practically no software implements this spec, adn the
author seems to have lost interest over  years ago.

Most RTSP clients expect native RTP and won't cope with Transport
Stream. Also, since RTSP takes care of RTP setup, there is little
benefit in having a single stream.

The code looks suspicious though.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This will be usefull to avoid to many resizing in icon_View

This is not top quality yet, but it is usable.

Search the install library path as well as the hard coded /usr/lib
and /usr/local/lib (this is particularly important on system that
use the 64 suffix on x86_64.
(cherry picked from commit 47ffd252b036e4047054e3926ba0a9f94170c35e)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

(cherry picked from commit 80048bbcbf55c63290f3b2f6b1f04ce2f6b8d9f9)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

(cherry picked from commit 71c4bb2a2eafcb72c40d7e6f02eb0236e6e92fdb)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>