diff -Nru OpenCV-2.1.0/src/highgui/cvcap_libv4l.cpp OpenCV-new/src/highgui/cvcap_libv4l.cpp
--- OpenCV-2.1.0/src/highgui/cvcap_libv4l.cpp	2010-04-06 03:24:44.000000000 +0200
+++ OpenCV-new/src/highgui/cvcap_libv4l.cpp	2010-07-12 19:47:15.702134984 +0200
@@ -782,7 +782,7 @@
 
        capture->buffers[n_buffers].length = buf.length;
        capture->buffers[n_buffers].start =
-         mmap (NULL /* start anywhere */,
+         v4l2_mmap (NULL /* start anywhere */,
                buf.length,
                PROT_READ | PROT_WRITE /* required */,
                MAP_SHARED /* recommended */,