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Subject:	Re: needed : building instruction of newlib under window 10 cygwin32 or cygwin64ls
To:	cygwin AT cygwin DOT com
References:	<B242BB0F12C2544BB4FEB0B1B67AAF8E15BCC413 AT NDMSMBX402 DOT ndc DOT nasa DOT gov> <0ff02a77-4a12-0f39-bd92-6963adff6100 AT maxrnd DOT com>
From:	Mark Geisert <mark AT maxrnd DOT com>
Message-ID:	<c1be9877-6d41-eb59-fcf1-651f7ab801ac@maxrnd.com>
Date:	Fri, 27 Jul 2018 10:49:19 -0700
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In-Reply-To:	<0ff02a77-4a12-0f39-bd92-6963adff6100@maxrnd.com>

Replying to myself to correct things...

Mark Geisert wrote:
> Shen, Chang (MSFC-EV43) wrote:
>> Hi All
>>
>> Can anyone provide me with a step-by-step instruction to build newlib under
>> window10 cygwin32 or cygwin64?
>> Such as tool chain and environment settings.  I googled and could not find it.

I should read better.  I see so many "how to build Cygwin" questions I read 
yours as another one.  You're doing something different.  Here's what works:

     cd /opt    (for example)
     mkdir build install
     ln -s your-source-directory src

     cd build   (so you're in /opt/build)
     /opt/src/configure --prefix=/opt/install -v
     mkdir newlib

     cd newlib  (so you're in /opt/build/newlib)
     /opt/src/newlib/configure --prefix=/opt/install/newlib -v
     make

That will create libm.a, libg.a, and libc.a in /opt/build/newlib.

..mark

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