gcc 2.96 20000409 (experimental) does not compile

[Richard Kenner]

    ../../../egcs/libstdc++/std/ldcomplex.h:74: Internal compiler error in `schedule_insns', at
    ../../../egcs/libstdc++/std/ldcomplex.h:74: haifa-sched.c:7024
    ../../../egcs/libstdc++/std/ldcomplex.h:74: Please submit a full bug report.

An automated server complained this was the result of one of my
patches, but I also got this abort when compiling something else
before my change.  I'm about to investigate that.