Re: [release] Boost 1.84.0 Beta 1 Release Candidate 1 is available

From: Andrey Semashev (andrey.semashev_at_[hidden])
Date: 2023-11-16 15:32:02

On 11/16/23 18:28, Andrey Semashev wrote:
> On 11/16/23 18:14, Peter Dimov via Boost wrote:
>> Matthijs Möhlmann wrote:
>>>> There's no linker= feature, but I suppose you can try
>>>>
>>>> linkflags=-fuse-ld=lld-16
>>>>
>>>> since I see that in LDFLAGS in your log.
>>>>
>>>>
>>> Ok, tried that. Same error although somewhat different output. I go with
>>> your
>>> suggestion and keep 'stdlib=libc++ cxxstd=20'.
>>>
>>> Is the correct location to report this bug:
>>> https://github.com/boostorg/filesystem/issues ?
>>
>> Looks like it is, as the problem seems confined to Filesystem.
> 
> So far I don't see this as a Boost.Filesystem bug. The missing symbols
> (at least, those which were posted here earlier) are standard C++
> symbols, which by default should be linked automatically by the
> compiler. If the compiler doesn't do that, this is a compiler bug as far
> as I'm concerned. So the right place to report it is:
> 
> https://github.com/llvm/llvm-project/issues/
> 
> Incidentally, I have reported a similar problem before here:
> 
> https://github.com/llvm/llvm-project/issues/60578
> 
> and it looks like it hasn't been fixed yet.
> 
> As for a workaround, I suspect the problem can be worked around by
> manually adding linking with the standard library that defines those
> missing symbols. For example, `operator delete` is defined in libc++abi,
> so you may fix the problem by adding `linkflags=c++abi` to `b2` command
> line.

Sorry, the command line option should be `linkflags=-lc++abi`.