should fix that returning from fullscreen going wrongsize, also set
fullscreen flags after reparent and before parenting back from
fullscreen.

screennumbers starts from 1 onward, this allows user again to define if
he wants fullscreen window on particular screen instead of the one where
interface is.

configure: Add implicit sequence-point return-type strict-aliasing array-bounds missing-parameter-type overflow int-to-pointer-cast pointer-to-int-cast div-by-zero overflow to the list of Werror warnings.

Signed-off-by: Pierre d'Herbemont <pdherbemont@free.fr>

Added some additional locking to the media list player playitem functions to prevent threading instability.
Signed-off-by: Pierre d'Herbemont <pdherbemont@free.fr>

Revert "nuv: Fix some warnings and fix an issue where some unitialized pointer access could lead to a crash."

This reverts commit 3bbe374b.
This commit is wrong. There was no risk of crash. I will add assert
instead when not obvious.

This reverts commit 13268071.

It is wrong as -1 and 0 does not have the same meaning for picture_Export.
(I will document it).

This reverts commit 260dd07f.

 It is useless, the variable cannot be uninitialized, and does not
generate a warning for me. The patch could prevent finding real
bug if the code is modified.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

VLM : move input event callback deletion. In order to receive all inputs events it's better to delete callbacks just before releasing the object.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

...and fix a memory leak in LUA

This will avoid adding plenty of config_GetFoobarDir exports later.
Also make config_GetHomeDir return a heap-allocated string.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

This patch does the following :
- as a vout window provider, make sure skins functions run by vout thread(s)
  don't issue any calls to the GUI. (skins on Linux runs fine at last !)
- prepare support for SET_VOUT_SET_FULLSCREEN new control
- implement hotkeys (no longer available at the vout level)
- modify a show() method not consistent across platform
- cleanup (dead code)