[AUCTeX] preloading AUCTeX

[David Reitter]

Has anyone succeeded in preloading AUCTeX, that is, compiling AUCTeX into the 
Emacs binary when building?

In my quick experiments loading some large .el files (e.g., tex.el) required 
dependencies caused the process to fail.  (One would probably have to include 
everything, in the right order.)   Also, is there any configuration detection 
at load-time, that should not be preloaded to keep the binary portable?

At this time, loading AUCTeX (with the first .tex file) takes 3.5 seconds on a 
modern i7 laptop with SSD drive.  That's a lot!
Thanks for your input.