EricWF added a comment.
In https://reviews.llvm.org/D24083#534459, @logan wrote:
> One solution might be adding the `libclang_rt.builtins.${arch}.a` detection
> rules[1] to CMakeLists.txt, and manually specify
> `-lclang_rt.builtins-${arch}.a` when `LIBCXXABI_USE_COMPILER_RT` is enabled.
> Ho
logan added a comment.
Hi @rengolin and @EricWF,
After tracing the commit log of clang, it seems that `--rtlib=` is ignored
intentionally when `-nodefaultlibs` is present. (see also:
https://reviews.llvm.org/rL254535)
And, unfortunately, we don't have a command line option to ask clang to lin
EricWF added a comment.
This is not correct. We need the `-nodefaultlibs` on most platforms to prevent
libstdc++ from being linked. I think the correct fix is to change
`--rtlib=`
https://reviews.llvm.org/D24083
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rengolin added a comment.
This looks like a work around the fact that --rtlib is being ignored with
--nodefaultlibs. I'm not sure that's a sane behaviour, if you explicitly
specify --rtlib.
https://reviews.llvm.org/D24083
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