[cfe-dev] Trying again - building 64bit code on Windows

[Yaron Keren via cfe-dev]

That looks likea collision between the 32 bit and 64 bit versions of mingw.
Which version of 32 bit and 64 bit versions exactly do you, could you
provide download links?
I ask because there are several mingw distributions around and they are
different.


2015-08-25 7:43 GMT+03:00 Edward Diener via cfe-dev <cfe-dev at lists.llvm.org>
:

> On 8/24/2015 11:38 PM, Yaron Keren via cfe-dev wrote:
>
>> Evidently to build a version of clang on Windows targeting mingw-64/gcc,
>>> which can compile 64-bit code, one must build clang with a 64-bit version
>>> of mingw-64/gcc. This may be apparent to you and other clang developers but
>>> it was not apparent to me.
>>>
>>
>> clang may be built with any supported regardless the target. For
>> example, I'm building clang using Visual C++ 64 bit and targetting the
>> 32-bit version of mingw. You do need to have the target mingw installed
>> for the include files, library files and linker.
>>
>
> Please see my other response in this thread to Ivan. My experience is
> clearly that a 32-bit version of clang does not work when a 64-bit version
> of mingw-64/gcc is first in the Windows PATH. I also explained this
> previously in my post "Clang on Windows targeting mingw-64/gcc building
> 64bit code", which was unanswered.
>
>
>>
>>
>> 2015-08-25 5:15 GMT+03:00 Edward Diener via cfe-dev
>> <cfe-dev-NBbBogny7ofFcdTEL8lfRQ at public.gmane.org
>> <mailto:cfe-dev-NBbBogny7ofFcdTEL8lfRQ at public.gmane.org>>:
>>
>>     On 8/24/2015 6:27 PM, Hans Wennborg via cfe-dev wrote:
>>
>>         On Mon, Aug 24, 2015 at 2:36 PM, Edward Diener via cfe-dev
>>         <cfe-dev at lists.llvm.org
>>         <mailto:cfe-dev-NBbBogny7ofFcdTEL8lfRQ at public.gmane.org>> wrote:
>>
>>             Is clang built form the latest svn source capable of
>>             creating 64-bit code on
>>             a Microsoft Windows 64-bit OS ?
>>
>>
>>         Yes. We build 64-bit Chromium on Windows with Clang continuously.
>>
>>             If yes, is this done through the -m64 option
>>             or do I have to build clang from source in some particular
>>             way to enable the
>>             functionality ?
>>
>>
>>         Yes, using clang-cl -m64 is how we do it.
>>
>>
>>     Evidently to build a version of clang on Windows targeting
>>     mingw-64/gcc, which can compile 64-bit code, one must build clang
>>     with a 64-bit version of mingw-64/gcc. This may be apparent to you
>>     and other clang developers but it was not apparent to me.
>>
>>     I would like to add to the documentation on the clang "Getting
>>     Started: Building and Running Clang" page at
>>     http://clang.llvm.org/get_started.html a section of documentation
>>     following the section "Using Visual Studio" called "Using
>>     mingw(-64)/gcc". This section would explain how to build clang on
>>     Windows using ninja, CMake, and a mingw(-64)/gcc implementation and
>>     how to run clang from the command line using a mingw(-64)/gcc RTL. I
>>     am willing to completely write this documentation, to be vetted by
>>     whatever clang developer takes care of that "Getting Started" page,
>>     in order to help other developers build and run clang on Windows
>>     with the mingw(-64)/gcc RTL.
>>
>
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