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Subject:	Re: Cross build of newlib-cygwin release tag cygwin-2_11_1-release.
To:	cygwin AT cygwin DOT com
References:	<f020a254-263d-a901-7237-73eaf45fa21e AT gmail DOT com> <143b033e-1d26-16f2-988c-2634a2b1e06e AT gmail DOT com> <276362f8-7162-21f7-00a1-3f5896a7ac75 AT gmail DOT com> <530490cf-a77a-c22c-b327-d6001c9486f5 AT gmail DOT com> <20181030203204 DOT GB3310 AT calimero DOT vinschen DOT de> <dfed87f1-5acf-cc44-60d8-0cb7851a71fd AT gmail DOT com>
From:	cyg Simple <cygsimple AT gmail DOT com>
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Message-ID:	<2cf7b0d9-8730-dfa6-b5e0-c25f43ba9ba6@gmail.com>
Date:	Tue, 30 Oct 2018 17:29:09 -0400
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On 10/30/2018 5:24 PM, cyg Simple wrote:
> 
> 
> On 10/30/2018 4:32 PM, Corinna Vinschen wrote:
>> On Oct 30 16:01, Earnest Boyd wrote:
>>> On 10/30/2018 3:31 PM, cyg Simple wrote:
>>>> On 10/30/2018 11:03 AM, cyg Simple wrote:
>>>>> PING... Does no one have an idea?
>>>>>
>>>>> On 10/29/2018 12:09 PM, cyg Simple wrote:
>>>>>> I'm trying to cross build the Cygwin source on a VirtualBox Arch Linux
>>>>>> with GCC-7.3.0 and Binutils 2.31. The process I am using clones the
>>>>>> master repository and then does a checkout of the release tag.  Here is
>>>>>> the configure command from the head of the config.log.
>>>>>>
>>>>>> ```
>>>>>> $ head /home/cygsimple/src/sf/build/newlib-cygwin/build/config.log |
>>>>>> grep newlib-cygwin-2.11.1/configure
>>>>>> $
>>>>>> /home/cygsimple/src/sf/build/newlib-cygwin/src/newlib-cygwin-2.11.1/configure
>>>>>> --prefix=/usr --host=x86_64-pc-cygwin --build=x86_64-pc-linux-gnu
>>>>>> --target=x86_64-pc-cygwin --sysconfdir=/etc --sharedstatedir=/var
>>>>>> --localstatedir=/var
>>>>>> ```
>>>>>>
>>>>
>>>> I tried this on the master Cygwin and get the same error.
>>>>
>>>> ```
>>>> $ head config.log | grep newlib-cygwin
>>>>   $
>>>> /usr/local/src/cygsimple/sf/build/newlib-cygwin/src/newlib-cygwin-2.11.1/configure
>>>> --prefix=/usr --host=x86_64-pc-cygwin --build=x86_64-pc-cygwin
>>>> --target=x86_64-pc-cygwin --sysconfdir=/etc --sharedstatedir=/var
>>>> --localstatedir=/var
>>>> ```
>>>>
>>>> What configuration item should I add to avoid this?
>>>>
>>>
>>> Patching winsup/cygwin/Makefile.in to remove -Werror allows this to
>>> build though the warnings continue.  But how does Corinna do this?
>>
>> No special settings.  But this:
>>
>>>>>> c++wrap -pedantic -fomit-frame-pointer -m64 -O2 -g -fno-rtti
>>               ^^^^^^^^^                      ^^^^
>> Looks weird.  We don't use neither pedantic nor m64 and from the above
>> it seems you didn't specify them explicitely either.  So where are they
>> coming from?  "pedantic" may explain the error.  What linux-cygwin cross
>> gcc are you using?  Looks like you're not using the right one.
> 
> It's specified in winsup/cygwin/Makefile.in
> 

Well no, -pendantic -fomit-frame-pointer -m64 is set in a CFLAGS
environment variable.  I can fix that.

> The cross is my private build but that doesn't matter, the issue happens
> in a native build as well.
> 

-- 
cyg Simple

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