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Subject:	Re: Which is it -pc- or -unknown-
To:	cygwin AT cygwin DOT com
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From:	cyg Simple <cygsimple AT gmail DOT com>
Message-ID:	<d0910971-e385-99c2-ff1e-59182c6d2e39@gmail.com>
Date:	Thu, 19 Oct 2017 12:18:45 -0400
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On 10/19/2017 10:18 AM, Ken Brown wrote:
> On 10/19/2017 9:19 AM, cyg Simple wrote:
>> On 10/18/2017 6:58 PM, JonY wrote:
>>> I agree with Yaakov, why does it need to change?
>>>
>>
>> See my response to Yaakov.  If you supply explicit host and build to
>> configure it does not work.
> 
> So don't do that.  Specifying host is for cross-compilation.  Specifying
> build without host is for overriding the result of config.guess (never
> necessary on Cygwin).  See
> 
> 
> https://www.gnu.org/software/autoconf/manual/autoconf-2.69/html_node/Specifying-Target-Triplets.html
> 
> 
> In particular:  "If you mean to override the result of config.guess, use
> --build, not --host, since the latter enables cross-compilation."
> 

So?! It is still incorrect for the --target of the GCC build to be
x86_64-pc-cygwin.  My example didn't specify a different build from
host.  I ran across this from a package that was refusing to accept the
config.guess build triplet so I tried specifying both.  At that point it
failed to find x86_64-unknown-cygwin-gcc.

And ./configure --build=`/path/to/config.guess` will not work either as
currently delivered.

x86_64-pc-cygwin IS NOT CORRECT.  It needs fixed in the build process.

-- 
cyg Simple

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