Sunbird is a fully standalone application, built using the cross-platform Mozilla Toolkit. What follows below are basic instructions for building Sunbird. For more information about building Mozilla, you should consult the Mozilla build documentation pages.
Get the Sunbird 0.9 source code
To checkout the Sunbird 0.9 source code, you'll need to follow the instructions for the old CVS source code repository.
Please use the "SUNBIRD_0_9_RELEASE" cvs tag when specifying a development branch.
Get the Sunbird trunk (current development branch) source code
To checkout the current development code for Sunbird, you'll need to follow the instructions for the hg (Mercurial) source code repository.