2011/5/26 Matthew Brush mbrush@codebrainz.ca:
Not sure if you've seen this[1], to quote the source where I found that "...the patched and up-to-date version of ctags. It ships with Anjuta's package.". It would be cool to merge their fork into the mix as well.
[1] http://git.gnome.org/browse/anjuta/tree/plugins/symbol-db/anjuta-tags
I don't know what it is based on, but the best completion I've found in an open source ide is in code::blocks. I say "best" in terms of usability rather than tag parsing (maybe it is also correlated): as I open an existing file it automatically parses its tags and the includes (even stdlib, and also cuda library if I just add path to global settings), without explicitly doing anything.
Eugenio