On 12/15/2010 12:26 AM, Miles Bader wrote:
That one was put in largely for the benefit of Fortran, where it's set by default. In particular, when you turn off math-errno, single-instruction intrinsics such as sqrt() can be employed without checking for exceptions and re-trying with a library function which sets ERRNO. Still seems unlikely to be relevant to Mozilla.If -ffast-math causes you too many problems, the component options can be very useful too, e.g., -fno-math-errno...
-- Tim Prince