The information on this page is a bit out of date. We'll update this page as soon as we can.
The basic manifest for 1.6 defines which projects are needed to do a generic build for the emulator or for unlocked Dream devices (e.g. the Android Dev Phone 1). You need to have an appropriate device running a matching official image.
To build donut for dream (your device needs to be an ADP1 running an official 1.6 system):
Follow the normal steps to setup repo and check out the sources.
At the root of your source tree, run . build/envsetup.sh like you normally would for an emulator build.
Run make adb if you don't already have adb in your path.
run adb root.
in vendor/htc/dream-open/ there is a script called "extract-files.sh" that must be run (from that directory) to extract some proprietary binaries from your device (*). You only need to do this once.
run lunch aosp_dream_us-eng to specifically configure the build system for dream (the default is the equivalent of "lunch generic-eng", which doesn't contain dream-specific files).
run make from the top of the source tree.
from this point, the fastboot tool (which is put automatically in your path) can be used to flash a device: boot the device into the bootloader by holding the back key while pressing the power key, and run fastboot -w flashall.
Note: these instructions work for the sapphire (ADP2) build target, as well. Simply replace "dream" with "sapphire" above.