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From: Simon Wright <simon@pushface.org>
Newsgroups: comp.lang.ada
Subject: Re: to Simon Wright, re Mac OS X builds
Date: Thu, 06 Oct 2016 08:57:39 +0100
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Date: 2016-10-06T08:57:39+01:00
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Lucretia <laguest9000@googlemail.com> writes:

> I'm trying to replicate your build of 6.1.0 for mac so I get an
> understanding of the build process on Mac. Problem is, it's
> failing. There must be more than what you are telling going on on your
> platform.

> checking how to run the C++ preprocessor... /lib/cpp
> configure: error: in `/Users/laguest/gcc/build/gcc-6.1.0/gmp':
> configure: error: C++ preprocessor "/lib/cpp" fails sanity check
> See `config.log' for more details

I replied to this by mail, perhaps you didn't see it.

I couldn't reproduce the problem; maybe I made some change which is
still there. I don't have any notes about it, but if I did have this
problem I would have started looking in config.log.

This message comes from gmp/configure:10323. Why it's looking for
/lib/cpp I don't know (/lib doesn't exist); it should be using "g++ -E".