Cameleon is not maintained any more. It has been splitted in various parts. Have a look at these separated projects:
See the INSTALL file for installation procedure.
Check the FAQ about installation..
You can read the ChangeLog.
Latest release is 1.9.21 (2011-01-13).
Do not hesitate to download the nightly snapshot of the subversion trunk, with more features and bug fixes:Nightly snapshot.
The following libraries are required to compile Cameleon:
1.9.19 (24 Sep 2009)
1.9.18 (02 Feb 2007)
Bug fixes and enhancements in Chamo.
1.9.17 (27 Nov 2006)
Bug fixes and enhancements in Chamo. Search, query-replace and completion are available in Chamo, with regular expressions based on PCRE.
1.9.16 (10 Oct 2006)
The chamo editor is included and usable in cameleon. Many fixes and enhancements.
1.9.15 (06 Oct 2006)
Cameleon now includes chamo, a powerful text editor with OCaml as scripting language.
1.9.13 (10 May 2006)
A new configuration process which uses an OCaml script to detect required tools and libraries. Fixes and enhancements.