The build system is responsible for configuring and building Qtopia in the various incarnations it has. It is also responsible for building third party applications (via SDK or build/source tree).
Features
Build System
Build Qt (host), Qtopia Core (target) and Qtopia.
Operate as efficiently as possible without causing "you must clean everything and rebuild" situations.
Allow dependencies to be specified in the .pro files (easier maintenance of this information).
Create an image directory that can be used to run Qtopia (ie. all the Qt/Qtopia files required should be present).
Build packages for third party applications (SXE depends on this).
Build a binary SDK for third parties to build against.