avoid having extern Open() symbol defined multiple times in static builds

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

The largest change here consists of building the plug-ins cache after
vlc-cache-gen (instead of after modules previously).

Better patch welcome

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

Note that VLC does not support more than one alias per item.

...rather than in all modules/* directories

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

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

move equalizer.xml to httprequests.lua
Use a table to return equalizer band values
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 reverts commit 3ab2f937.

No need for -Wl,-shared or -rpath-link
No need for -lc -lgcc -ld, especially when using -nostdlib
Use --sysroot to point compiler to android headers/libs
Rename some shell variables
Move enabled modules at the top of the options
No need to set PATH, we give the absolute path for compiler