Re: find-file seems to hang

[Richard Stallman]

    But when I added a sit-for after each message call, but when I opened
    a 90000 line c file with the following local vars at the top:

    /* -*- mode: C; eval: (setq xxx 2); -*-
     */

    it triggered jit font locking in some way which caused a very very
    long pause before I could do anything.

Since computers are faster nowadays, it is probably ok to delete these
imenu scanning messages entirely.  Want to do that?

However, it would be useful first to debug what's going on there,
just by stopping it with GDB and making a backtrace.  That way
we might learn about some bug in jit-lock.