Lately I was searching around for possibilities of cross-referenced source code browsing of the Haiku source tree to make source code comprehension easier.
One (free software) option that caught my eye first, was the Redhat Source Navigator. I only took a short look at it, but the available Windows binary seemed to do its job. Compiling under BeOS R5, though, isn’t possible, because it relies on TCL/TK, and to my knowledge at least the TK-part isn’t available for BeOS.
The other option was a webserver based solution that works with Perl scripts, Linux Cross Reference. I tried it today on a SuSe Linux installation and it seems to work as well. The Haiku source tree and the generated database are much too big to upload on the webspace I have, though. An example can be seen here: Mozilla Cross Refernce. I’m sure the Bezilla developers must be familiar with this.
I don’t know, whether the Haiku website is currently on a dedicated server (with cron jobs and all that) or in a shared environment, but if there are free resources, maybe it could be worth to add a thing like this.