Evolution is the integrated mail, calendar and address book distributed suite from Helix Code, Inc. See http://www.helixcode.com/apps/evolution.php3 for more information. Note that Evolution is still pre-alpha. This means even if you manage to compile and run it, you might not be able to figure out how to tell it to accidentally delete all of your mail. If you are interested in hacking on Evolution, you should subscribe to the Evolution mailing list. Send mail to "evolution-request@helixcode.com" with the word "subscribe" in the body of the message. If you are planning to work on any part of Evolution, please send mail to the mailing list first, to avoid duplicated effort (and to make sure that you aren't basing your work on interfaces that are expected to change). There is a mailing list archive available at http://lists.helixcode.com/archives/public/evolution/ There is also an #evolution IRC channel on irc.gnome.org. Evolution depends on the following non-core gnome libraries: bonobo, gdk-pixbuf, gnome-print, gnome-vfs, gtkhtml, libglade, and libunicode. (These are all in GNOME CVS, in the modules by those names.) You also need a recent copy of ORBit. At the present time, the version in Helix GNOME is the only released version that is new enough. If you don't have that, you should check out ORBit from GNOME CVS with the option "-r orbit-stable-0-5" to get the recent stable branch. The layout of the source tree is: addressbook: the Address Book UI calendar: the Calendar UI camel: libcamel, a messaging library used by the mailer. Camel is inspired by Sun's JavaMail (http://java.sun.com/products/javamail/) and the IMAPv4 spec (RFC 2060). compose: the message composer UI data: the .desktop file for Evolution devel-docs: entirely inadequate documentation doc: more inadequate documentation, and some nice white papers e-util: utility code used by various parts of Evolution filter: libfilter, a mail filtering library libibex: an indexing library used by the mailer libical: a library for the iCalendar format (RFC 2445-2446) libversit: a library for the vCard (RFC 2425-2426) and vCalendar (http://www.imc.org/pdi/vcal-10.txt) formats mail: the mail display UI shell: the Evolution shell (the main program that launches the other components) tests: some test programs widgets: widgets used by Evolution, including the shortcut bar, ETable, and EText