Jeremy C. Reed posted his results from building all possible pkgsrc packages on DragonFly. More than half were successful already, and more (since he was building as non-root) should be possible. You can read his full post for details, but here’s a nice little summary:
Build started: Mon Aug 29 19:45:33 2005 GMT
Build ended: Wed Aug 31 03:36:14 2005 GMT
Successfully packaged: 2902
Packages really broken: 1037
Pkgs broken due to them: 1270
Total broken: 2307
Not packaged: 314
Total: 2621