[cairo] _cairo_color_compute_shorts fails with FPU set to single precision

[Behdad Esfahbod]

There's this bug:

  https://bugs.freedesktop.org/show_bug.cgi?id=7497

Carl likes to see discussion on the list about it before we make any
change.  So, bithackers please comment.

-- 
behdad
http://behdad.org/

"Commandment Three says Do Not Kill, Amendment Two says Blood Will Spill"
        -- Dan Bern, "New American Language"