GitLab

* Activate the opengllayer video output module.
* Rework a bit how Mac OS X Specific modules are handled.
video_output/Modules.am:
* Activate the opengllayer video output module.
* Please test that the --tag=CC libtool hack doesn't interfer with the .cpp modules.

Add OpenPGP code, still unused as there is no download of binaries at the moment

We will need to define (and write) the files (and their location) we will use in the update system:

    * We will use a file per arch, which will be signed
    * ALL VideoLAN gpg public keys will be stored on http://download.videolan.org/pub/keys/XXXXXXXXXXXXXXXX.asc where XXXXXXXXXXXXXXXX is the long id of the key
    * Every downloadable file will be signed with gpg --sign --detach --armor

* fixed a corner case on PowerPC-based Macs since MACOSX_DEPLOYMENT_TARGET is set to 10.1 on these devices, although we need at least 10.3 and prefer 10.4

* disable the usage of the OSX SDKs by default due to a known incompatibility between the libraries used on 10.4.8 (or higher) and the existing 10.4u SDK. This solves the current compilation issues with the AUHAL and Screen.Mac modules and closes #1399

* disable Screen Capturing on OSX until it is fixed because it blocks all builds on most 10.4 setups (refs #1399)

configure.ac: Because of the ld text relocation bug on Mac OS X, we have to disable ffmpeg when using such linker for the time being. Add a big warning at the end of configure if we are in such a configuration.

ncurses: base detection of wide characters support on the presence of libncursesw, and use the same header wether it's present or not

The change in configure.ac is suboptimal. It would be better to change DEFAULT_INCLUDES to use -I${top_builddir}/include rather than -I${top_builddir}. Automake wizard requested.

net/if.h depends on it on some systems (Darwin & FreeBSD at least)

New inhibit module to prevent the power management daemon (usually gnome-power-manager) to suspend/hibernate the laptop while VLC is active.