This is the notes about the bitweaver.org projects migration from CVS which makes extensive use of virtual modules (aka aliases ) in CVS to a distributed version control system (VCS) such as Mercurial or Git.

A Simple Table

Feature	Git	Mercurial
Ad-hoc Builds	As of git 1.5.3, there is a concept known as super modules
Keywords
Cross Platform Support

Mercuial

Migration

1. Migrate each module separately, and then combine

http://stackoverflow.com/questions/12843/how-to-combine-two-projects-in-mercurial

Git

On CentOS, git needed to be upgraded to get super modules. CentOS 5.4+ broke things so the rpm would not build - had to docbook dtd definition to get a Fedora rpm to build properly.