diff -Naur opencv-2.4.7.orig/cmake/OpenCVFindLibsVideo.cmake opencv-2.4.7/cmake/OpenCVFindLibsVideo.cmake
--- opencv-2.4.7.orig/cmake/OpenCVFindLibsVideo.cmake	2013-11-06 15:26:39.000000000 +0100
+++ opencv-2.4.7/cmake/OpenCVFindLibsVideo.cmake	2013-11-13 00:06:18.901861298 +0100
@@ -127,6 +127,7 @@
 if(WITH_V4L)
   if(WITH_LIBV4L)
     CHECK_MODULE(libv4l1 HAVE_LIBV4L)
+    CHECK_MODULE(libv4l2 HAVE_LIBV4L2)
   endif()
   CHECK_INCLUDE_FILE(linux/videodev.h HAVE_CAMV4L)
   CHECK_INCLUDE_FILE(linux/videodev2.h HAVE_CAMV4L2)