compiling opencv for arm architecture

See more:

cross-platform

compiler

GCC

cmake

i have set up target fs on /home/myself/filesys/bin..etc//

GCC compile:
host $ arm_v5t_le-gcc hello.c -o hello

Run:
target $ cd /opt/hello
target $./hello

i have installed opencv2.3 on host ubuntu machine now i want opencv to be ported to DM6446 so i follow

1 uncompress opencv2.3 tarball
2 sudo cmake OpenCV-2.3.1
3 sudo make ARCH=arm CROSS_COMPILE=arm_v5t_le-

but when i run the sample test from bin it runs on x86 machine which was made for ARM i think i am not following the correct procedure to make opencv

is there anything i have to do to make opencv for ARM architecture what are the steps to follow in cross compiling.