[patch] Add -static-libquadmath option

[Steve Kargl]

On Mon, Oct 06, 2014 at 08:38:14PM +0000, Joseph S. Myers wrote:
> Since -static-libquadmath introduces LGPL requirements on redistributing 
> the resulting binaries (that you provide source or relinkable object files 
> to allow relinking with modified versions of libquadmath) that don't 
> otherwise generally apply simply through using GCC to build a program even 
> if you link in GCC's other libraries statically, it would seem a good idea 
> for the documentation of this option to make that explicit.

Or, change the license of libquadmath to be compatible with
libgcci and libgfortran.

-- 
Steve