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Date: Wed, 27 Sep 2017 15:30:03 -0700 (PDT)
From: Steven Penny <svnpenn@gmail.com>
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To: cygwin@cygwin.com
References: <CAJygYd2i5i7HWb5Zk2KMyDuLitOM4OjOB4aez9C-_Day+1kZPA@mail.gmail.com>
Subject: Re: Error Linking LTO programs using GCC6.4
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User-Agent: Tryst/2.0.1 (github.com/svnpenn/tryst)

On Wed, 27 Sep 2017 14:42:43, =?UTF-8?B?5Y+26Zuo6aOe?= wrote:
> This is actually not the same issue at
> https://cygwin.com/ml/cygwin/2017-09/msg00236.html
> 
> In my case, it is caused by latest binutils 2.28 , when using 2.25
> everything is fine (even with gcc-6.4)
> 
> Maybe we should hold back upgrading binutils , or maybe it need a more
> recent version? There seems to be binutils 2.29.1 now

Actually, it is the same issue:

    $ cygcheck -s | grep -e binutils -e gcc
    mingw64-x86_64-binutils                 2.25.0.1.23f238d-1     OK
    mingw64-x86_64-gcc-core                 6.3.0-1                OK
    mingw64-x86_64-gcc-g++                  6.3.0-1                OK

    $ cat z.cpp
    #include <iostream>
    main() {
      std::cout << "cout test\n";
    }

    $ x86_64-w64-mingw32-g++ -static -o z z.cpp
    $ ./z
    cout test

So, with both your post and my post, the issue is fixed by not using:

- binutils 2.28.1
- mingw64-x86_64-binutils 2.28.1
- mingw64-i686-binutils 2.28.1

which leaves the last working version:

- binutils 2.25.0
- mingw64-x86_64-binutils 2.25.0
- mingw64-i686-binutils 2.25.0


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