libvlc: intf-show and intf-popmenu must be created before interfaces are...

libvlc: intf-show and intf-popmenu must be created before interfaces are launched (via use of --extraintf)

This fixes 'vlc -I rc --extraintf skins' that fails to add a callback to these
variables because they are not yet created
(pointed out by assert failed in debug mode when calling var_DelCallback)

src/libvlc.c

@@ -794,6 +794,13 @@ int libvlc_InternalInit( libvlc_int_t *p_libvlc, int i_argc,
      */
     vlc_InitActions( p_libvlc );
 
+    /* Create a variable for showing the fullscreen interface */
+    var_Create( p_libvlc, "intf-show", VLC_VAR_BOOL );
+    var_SetBool( p_libvlc, "intf-show", true );
+
+    /* Create a variable for showing the right click menu */
+    var_Create( p_libvlc, "intf-popupmenu", VLC_VAR_BOOL );
+
     /* variables for signalling creation of new files */
     var_Create( p_libvlc, "snapshot-file", VLC_VAR_STRING );
     var_Create( p_libvlc, "record-file", VLC_VAR_STRING );
@@ -950,13 +957,6 @@ int libvlc_InternalInit( libvlc_int_t *p_libvlc, int i_argc,
     var_Create( p_libvlc, "drawable-clip-right", VLC_VAR_INTEGER );
 
 
-    /* Create a variable for showing the fullscreen interface from hotkeys */
-    var_Create( p_libvlc, "intf-show", VLC_VAR_BOOL );
-    var_SetBool( p_libvlc, "intf-show", true );
-
-    /* Create a variable for showing the right click menu */
-    var_Create( p_libvlc, "intf-popupmenu", VLC_VAR_BOOL );
-
     /*
      * Get input filenames given as commandline arguments
      */