x11vnc: allow fbdev only (x11-less) builds

meta-oe/recipes-graphics/x11vnc/x11vnc_0.9.13.bb

@@ -1,4 +1,4 @@
-SUMMARY = "Exports your X session on-the-fly via VNC"
+SUMMARY = "Exports your X session or FrameBuffer(fbdev) on-the-fly via VNC"
 HOMEPAGE = "http://www.karlrunge.com/x11vnc/"
 
 SECTION = "x11/utils"
@@ -16,15 +16,22 @@ SRC_URI = "${SOURCEFORGE_MIRROR}/libvncserver/x11vnc/${PV}/x11vnc-${PV}.tar.gz\
 SRC_URI[md5sum] = "a372ec4fe8211221547b1c108cf56e4c"
 SRC_URI[sha256sum] = "f6829f2e629667a5284de62b080b13126a0736499fe47cdb447aedb07a59f13b"
 
-DEPENDS = "openssl virtual/libx11 libxext jpeg zlib libxfixes libxrandr libxdamage libxtst libtasn1 p11-kit"
+DEPENDS = "\
+	jpeg \
+	libtasn1 \
+	openssl \
+	p11-kit \
+	zlib \
+"
 
 inherit autotools-brokensep distro_features_check
-# depends on virtual/libx11
-REQUIRED_DISTRO_FEATURES = "x11"
+
+ANY_OF_DISTRO_FEATURES = "x11 fbdev"
 
 PACKAGECONFIG ??= "${@bb.utils.contains('DISTRO_FEATURES', 'zeroconf', 'avahi', '', d)} libvncserver"
 PACKAGECONFIG[avahi] = "--with-avahi,--without-avahi,avahi"
 PACKAGECONFIG[xinerama] = "--with-xinerama,--without-xinerama,libxinerama"
+PACKAGECONFIG[x] = "--with-x,--without-x, libxdamage libxext libxfixes libxrandr libxtst virtual/libx11"
 PACKAGECONFIG[libvncserver] = "--with-system-libvncserver,--without-system-libvncserver,libvncserver"
 
 do_prepare_sources () {