Re: [boost] [clang] How to use CLang for Windows?

On 9/29/2013 3:32 PM, Beman Dawes wrote:

On Sun, Sep 29, 2013 at 11:13 AM, Jonathan Wakely wrote:

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On 28 September 2013 21:50, Edward Diener wrote:

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I still do not see a roadmap for using clang with Boost Build under

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to build/test Boost libraries.

Am I supposed to download a Windows snapshot from http://llvm.org/builds/ ?

Am I supposed to get the latest llvm/clang from http://clang.llvm.org/get_started.html and build it for Visual Studio (

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never worked properly in the past and there is no mention of VS2012 on

Windows this that

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page ).

Am I supposed to use a 'clang' toolset on Windows with Boost Build ?

As usual, with no doubt all the "good" intentions in the world to allow clang to be used under Windows, the documentation, explanation, and support for clnag under Windows is lacking/minimal.

Sounds like you're expecting someone to have already made this work. That's not how the bleeding edge of open source works, *especially* when combining things from different projects on a new platform!

Someone has to figure all that stuff out bit by bit and fix the things that don't work. If you just expect to download a complete, working environment then you should wait until someone else has done the hard work.

+1

Edward, Jonathan is exactly right about this.

If you want to help, at the very least start grinding out bug reports for Clang on Windows. If you want to do even more, ask the Clang on Windows team what more you can do. For example, running tests for them. See their request for a test runner (hard to do cause I haven't posted it yet, but wait a few minutes...).

With all due respect, Beman, there is no point of doing this at least for Boost headers once I reverted the fix to the Boost PP code that would have allowed clang under Windows to correctly compiler Boost PP code as a strictly conforming C++ standard preprocessor. It fails miserably as the VC++ preprocessor and I am not personally interested particularly in discovering why since the VC++ preprocessor is just badly broken in a number of respects general. To emulate that brokeness cannot be the goal of any C++ compiler. I will wish the clang people best of luck on their Windows implementation but if it means emulating VC++ in every respect I do not see the purpose of it, as I can just as well use VC++.