Message 75261 - Python tracker

The test_math failure may well be due to a libm bug:  tanh(-0.0)
might be incorrectly (judging by the BSD man pages) dropping the negative 
sign from the negative zero.

In the output of ./configure, there should be a line that looks like:

checking whether tanh preserves the sign of zero... yes

I'm guessing that on your machine you get a "no" instead of a "yes"
there, indicating that tanh(-0.0) is 0.0 instead of -0.0 on your
platform.  Is this the case?