Mac now fails to build because of libiconv

[Paul Koning]

> On Jan 30, 2018, at 7:00 AM, Segher Boessenkool <segher@kernel.crashing.org> wrote:
> 
> On Mon, Jan 29, 2018 at 05:00:00PM -0500, Paul Koning wrote:
>> It's been a few months since I tried to build GCC on my Mac, and in earlier tries it worked fine.  I have a log from 20-Sep-2017 that shows success.
>> 
>> But currently when I do the same configs as before, I get failures about _iconv being undefined.  This is in spite of the fact that I have libiconv installed, and just to be sure, told configure where to find it (--with-libiconv=/usr/local)
> 
> --with-libiconv-prefix=/usr/local

Ah.  I misread the help, thanks.  It's surprising to have --with-gmp=<prefix> but --with-libiconv-prefix=<prefix>.

> (or use --disable-nls as the nuclear option)?

I'll keep that in mind as another option.  Thanks for the help.

	paul