[llvm-bugs] [Bug 33669] Building with LINK_LLVM_DYLIB and LTO cause tblgen link failure

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33669

Davide Italiano <davide at freebsd.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID
                 CC|                            |davide at freebsd.org

--- Comment #1 from Davide Italiano <davide at freebsd.org> ---
I think you're using GNU ar that doesn't know about bitcode files.
You should use an archiver that knows about bitcode symbol tables, e.g.
llvm-ar.
You also need to override ranlib, you can set to /usr/bin/true (or llvm-ranlib)

See
https://clang.llvm.org/docs/ThinLTO.html#id13

(please note that while this is for ThinLTO something equivalent applies for
LTO).

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