[cfe-dev] anyone knows the current state of libc++ on windows?

[Yaron Keren]

clang (lld) can't link .o files (COFF) on Windows.
MinGW is needed mainly for ld linker and for the C library headers but also
for other libraries, such as the unwinder.




2014-05-08 13:29 GMT+03:00 Dennis Luehring <dl.soluz at gmx.net>:

> MinGW does not have its own C library, it uses MSVCRT for C library.
>> So practically any program compiled with MInGW depends on MSVCRT.
>>
>
> but why is then MinGW needed at all - is the MinGW c library in use as an
> wrapper
> or can't clang directly compile(link) agains MSVCRT?
>
>
> Am 08.05.2014 12:15, schrieb Yaron Keren:
>
>> MinGW does not have its own C library, it uses MSVCRT for C library.
>> So practically any program compiled with MInGW depends on MSVCRT.
>>
>> Yaron
>>
>>
>>
>> 2014-05-08 13:05 GMT+03:00 Dennis Luehring <dl.soluz at gmx.net>:
>>
>> > I routinely compile libc++ & libcxxabi with clang as
>> >> compiler and link with MinGW 4.8.2 (gcc calling ld)
>> >> as an replacement for libstdc++.
>> >>
>> >
>> > did you ever checked linking with "Microsoft Visual C Run-Time Library"
>> > (MSVCRTxyz)
>> > so that the dependencies are only libc++ & libcxxabi & MSVCRT - is that
>> > possible
>> > or are there still compile/link problems with microsoft stuff
>> >
>> >
>> > Am 08.05.2014 11:30, schrieb Yaron Keren:
>> >
>> >  Hi Dennis,
>> >>
>> >> I routinely compile libc++ & libcxxabi with clang as compiler and link
>> >> with
>> >> MinGW 4.8.2 (gcc calling ld) as an replacement for libstdc++. It builds
>> >> and
>> >> overall works. I have run the tests some while ago, most passed but
>> there
>> >> were failures, have not looked in depth.
>> >>
>> >> libc++ compiled with gcc - gcc 4.7 could not handle some of the
>> "advanced"
>> >> C++ code in libcxx. Have not tested with 4.8 or the just released 4.9.
>> >>
>> >> libc++ with Visual C++ - there were multiple C++ compatibility problems
>> >> even with VC 2013.
>> >> Someone named "G M" had tried this for a while and some of his patches
>> >> were
>> >> comitted, search on the list for "G M".
>> >> The latest Visual C++ is 2013 Update 2, MS are imporving VC C++ support
>> >> every version, you can try building libcxx with it and see what fails
>> now.
>> >> The free express version is available here
>> >>
>> >>   http://www.microsoft.com/en-us/download/details.aspx?id=40787
>> >>
>> >> Yaron
>> >>
>> >>
>> >>
>> >> 2014-05-08 10:04 GMT+03:00 Dennis Luehring <dl.soluz at gmx.net>:
>> >>
>> >> > but not using Visual C++.
>> >> >>
>> >> >
>> >> > sorry for my unprecise question
>> >> >
>> >> > libc++ & MingW
>> >> >   compiles (as you wrote) - and all tests run fine?
>> >> >
>> >> > libc++ & MSVC
>> >> >   does not compile - what parts, any building/test stats available?
>> >> >
>> >> > libc++ & Clang under Windows
>> >> >   ???
>> >> >
>> >> > Am 08.05.2014 07:29, schrieb Yaron Keren:
>> >> >
>> >> >  Hi Dennis,
>> >> >>
>> >> >> You can build libcxx using MingW-w64
>> >> >>
>> >> >>
>> >> >> http://sourceforge.net/projects/mingw-w64/files/
>> >> Toolchains%20targetting%
>> >> >> 20Win32/Personal%20Builds/mingw-builds/
>> >> >>
>> >> >> but not using Visual C++.
>> >> >>
>> >> >> Yaron
>> >> >>
>> >> >>
>> >> >>
>> >> >> 2014-05-08 7:20 GMT+03:00 Dennis Luehring <dl.soluz at gmx.net>:
>> >> >>
>> >> >> > the information on http://libcxx.llvm.org/
>> results.Windows.htmlseems to
>>
>> >> >> > be a little bit out-dated
>> >> >> >
>> >> >> > anyone still working on the port?
>> >> >> >
>> >> >> > _______________________________________________
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>> >> >> > cfe-dev at cs.uiuc.edu
>> >> >> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>> >> >> >
>> >> >>
>> >> >>
>> >> > _______________________________________________
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>> >> > cfe-dev at cs.uiuc.edu
>> >> > http://lists.cs.uiuc.edu/mailman/listinfo/cfe-dev
>> >> >
>> >>
>> >>
>> > _______________________________________________
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>> >
>>
>>
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