This short guide assumes you're on Ubuntu 11.04
First, we need to create directories for the build:
$ mkdir -p ~/bin
$ mkdir -p ~/android/system
Now we'll need repo. Let's download it and make it executable:
$ curl http://android.git.kernel.org/repo > ~/bin/repo
$ chmod a+x ~/bin/repo
Log out and back in so the changes take effect.
Now initialized the repository and pull the source (with my repos attached):
$ cd ~/android/system/
$ repo init -u git://github.com/playfulgod/android.git -b gingerbread
$ repo sync -j16
Depending on your connection, this might take awhile.
We will need to reuse some proprietary files.
$ cd
$ cd ~/android/system/device/huawei/m835/
$ ./extract-files.sh
Once thats done you can start compiling.
Follow the aosp instructions on setting up the build environment. - http://source.android.com/source/download.html
When the environment is setup, we need to grab a copy of Koush's ROM Manager. This is necessary to build CM7.
$ cd
$ ~/android/system/vendor/cyanogen/get-rommanager
Now, we build:
$ cd ~/android/system
$ . build/envsetup.sh && brunch m835
If the build was successful, you can now take the update zip found in out/target/product/ascend/ and flash using a custom recovery. Make sure to grab the latest Gapps to complete the experience.