Comment # 4 on bug 1200186 from William Brown

(In reply to Richard Biener from comment #3)
> (In reply to William Brown from comment #2)
> > (In reply to Richard Biener from comment #1)
> > > Why are you using -fuse-ld=lld? 
> > 
> > Because lld is significantly faster than the default.
> 
> But lld is not supported, you are on your own when using it (with GCC even
> more so).

gcc supplies and allows the -fuse-ld=lld argument, so I think in this case if
it's present gcc should not emit incompatible flags for lld. 

I am aware that lld is not supported, but my time is also important and the
difference in many builds, especially rust can be more than double by swapping
to lld. For further, see https://github.com/rui314/mold#readme which has other
comparisons.