Re: cflag ffast-math

[Andrew Lutomirski]

On Thu, Jan 25, 2018 at 2:53 PM, Sérgio Basto <sergio(a)serjux.com&gt; wrote:

>  Hi,
>  Question about gcc cflag ffast-math .
>  Should I enable cflag ffast-math on opencv build explicitly
>  ( -DENABLE_FAST_MATH=ON ) ? and I keep disable cflag ffast-math in mlt
>  build [1] ?
>
>  
I have no meaningful comment on compiling with -ffast-math, but you
absolutely should not *link* with -ffast-math.  See:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55522

and

https://bugzilla.redhat.com/show_bug.cgi?id=1248744

Also, if any toolchain people are listening, maybe you could consider
fixing the GCC bug?  It should be easy, since it mostly consists of option
tweaking.