package/x11vnc: add dependency on libvncserver

x11vnc needs libvncserver, so select it explicitely.

Fixes:

  http://autobuild.buildroot.net/results/34f8045e772b96293cc7d25bd61ac0aa5842824f/

Signed-off-by: Martin Kepplinger <martink@posteo.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/x11vnc/Config.in

@@ -2,6 +2,8 @@ config BR2_PACKAGE_X11VNC
 	bool "x11vnc"
 	depends on BR2_PACKAGE_XORG7
 	depends on BR2_USE_MMU # fork()
+	depends on !BR2_nios2 # libvncserver
+	select BR2_PACKAGE_LIBVNCSERVER
 	select BR2_PACKAGE_XLIB_LIBXT
 	select BR2_PACKAGE_XLIB_LIBXEXT
 	select BR2_PACKAGE_XLIB_LIBXTST

package/x11vnc/x11vnc.mk

@@ -9,7 +9,7 @@ X11VNC_SITE = $(call github,LibVNC,x11vnc,$(X11VNC_VERSION))
 # sdl support is not used in x11vnc, but host include / library search paths
 # leak in if host has sdl-config
 X11VNC_CONF_OPTS = --without-sdl
-X11VNC_DEPENDENCIES = xlib_libXt xlib_libXext xlib_libXtst
+X11VNC_DEPENDENCIES = xlib_libXt xlib_libXext xlib_libXtst libvncserver
 X11VNC_LICENSE = GPL-2.0+
 X11VNC_LICENSE_FILES = COPYING