How are CPU-optimized libraries supposed to work?

[Roland McGrath]

> In any case here's a patch to make i686 libraries work with an i386
> ld.so again.  Results look pretty good so far.

I don't think this is entirely doable.  That is, if any [HP_TIMING_AVAIL]
code gets used, it won't produce correct results.  ld.so (_dl_start_final)
initializes GL(dl_cpuclock_offset), and that needs to have been done if
clock_gettime is called.