[LyX] "Illegal instruction (core dumped)"

[Bobby D. Bryant]

I installed Red Hat's 7.1 beta on my test system, and can't get LyX to
work.  I have tried 1.1.6fix1, both from the RPM and from an in situ
compilation, and both bomb off with the "Illegal instruction" error a
moment after I invoke LyX (and before anything visibly happens).

System:
    LyX 1.1.6fix1 (either from RPM or compiled locally)
    xforms 0.88-6 (from an RPM)
    Linux 2.4.0-0.99.11
    Pentium Pro

For the compiled LyX, the only configuration that I specify is --prefix;
everything else defaults.

Bobby Bryant
Austin, Texas