To get started with Android/CyanogenMod, you'll need to get familiar with Git and Repo.
To initialize your local repository using the CyanogenMod trees, use a command like this:
repo init -u https://github.com/walter79/android-wetab.git -b ics
Then to sync up:
repo sync
. build/envsetup.sh
make -jX iso_img TARGET_PRODUCT=android_x86 (X=Numbers of CPU-Cores)
"if target android_x86 not work use wetab "
Once done here is the result:
out/target/product/pegatron/wetab.iso is built successfully.
More information: http://www.wetab-community.com/index.php?/topic/19765-icsandroid-404-kernel-3036-arm-emulation-minmal-gapps/