[EXTERNAL] Re: [PATCH v2] newlib: skip build of AArch64 80bit and 128bit long double functions when sizeof(double) == sizeof(long double)

[Corinna Vinschen]

On Jul 21 11:47, Radek Barton via Newlib wrote:
> Hello.
> 
> > So, if I'm not completely off-track, you should just define _LDBL_EQ_DBL
> > for the aarch64-pc-cygwin target.
> 
> The `_LDBL_EQ_DBL` macro is correctly set by the `configure` even
> without changes from my patch. The merit of patch is to skip build of
> source codes in `newlib-cygwin/newlib/libm/ld` folder based on the
> presence of that macro because it seems that those implementations are
> relevant only to the cases where `sizeof(double) != sizeof(long
> double)`. Alternatively, I can add checks to `_LDBL_EQ_DBL` macro to
> every single file in that folder but that would effectively have the
> same effect for the majority of the implementations, as far as I
> understand it.

No, sorry, I didn't quite get that, apparently.  This sounds like a 
good idea to me.  If the files are unused anyway, why build them at
all?

Craig, since you seem to have a better grasp of the math part in newlib,
what do you think?

Thanks,
Corinna