[cfe-dev] libc++ documentation of LIBCXX_CXX_ABI_LIBNAME wrong?

[Dimitry Andric via cfe-dev]

Yes, the CMake variable to use is LIBCXX_CXX_ABI.  For FreeBSD, I always set it to -D LIBCXX_CXX_ABI=libcxxrt, and optionally I also set -D LIBCXX_CXX_ABI_INCLUDE_PATHS.

-Dimitry

> On 30 Aug 2018, at 16:09, Louis Dionne via cfe-dev <cfe-dev at lists.llvm.org> wrote:
> 
> I do think the documentation is correct. libcxx/CMakeLists.txt:166 actually sets LIBCXX_CXX_ABI_LIBNAME from LIBCXX_CXX_ABI. My understanding is that LIBCXX_CXX_ABI_LIBNAME is an internal variable and LIBCXX_CXX_ABI is the (documented) user-facing setting. I can take a look if you can provide a reproducer (setting LIBCXX_CXX_ABI and it not working).
> 
> Louis
> 
>> On Aug 25, 2018, at 10:04, Andrew Brownsword via cfe-dev <cfe-dev at lists.llvm.org <mailto:cfe-dev at lists.llvm.org>> wrote:
>> 
>> It appears that the option LIBCXX_CXX_ABI_LIBNAME is incorrectly mentioned repeatedly as LIBCXX_CXX_ABI on this webpage:  https://libcxx.llvm.org/docs/BuildingLibcxx.html#abi-library-specific-options <https://libcxx.llvm.org/docs/BuildingLibcxx.html#abi-library-specific-options>
>> 
>> The build wasn’t working for me until I looked into the cmake module and noticed that it was checking the longer name.
>> 
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