This was from Michael Abshoff from awhile back when he was working on
Sage and Solaris:

"""
 * sympow: Here we are using Mark Watkins own quaddouble code and the
FPU mode setting code is basically busted. There are two ways how to
handle this: (a) Fix the FPU mode setting code by using Solaris
specific headers (b) rip out the quaddouble code and replace it with
MPFR. (a) might be less work in the short term, but (b) seems to be
the better long term solution since on Mips64 or Sparc for example
IEEE does act sufficiently different to cause trouble. At least the
examples we test on Sparc with sympow seem to compute correctly, but I
would not trust it at all until we use MPFR.
"""

We had run into accuracy issues with Bailey's quaddouble in Sage on
Solaris when working on the number_of_partitions code.

--Mike

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