scipy/scipy — pull request #3388 by pv (2014-02-25 19:37:13+00:00)
Title: BUG: SuperLU: fix missing declaration of dlamch

SuperLU 4.3 called some functions returning floats without declaring
them. On i386@linux call convention, this fails to clear floating point
registers after call. As a result, NaN can appear in the next floating
point operation made.

Squashes a couple of the current test failures on i386.