[all-commits] [llvm/llvm-project] 075581: [clang-repl] Fix undefined lld::wasm::link symbol ...

[Anutosh Bhat via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 075581f34035c01659cc883d0d69336c279ef0d5
      https://github.com/llvm/llvm-project/commit/075581f34035c01659cc883d0d69336c279ef0d5
  Author: Anutosh Bhat <87052487+anutosh491 at users.noreply.github.com>
  Date:   2024-10-25 (Fri, 25 Oct 2024)

  Changed paths:
    M clang/lib/Interpreter/CMakeLists.txt

  Log Message:
  -----------
  [clang-repl] Fix undefined lld::wasm::link symbol while building clangInterpreter for wasm (#113446)

While building llvm (clang, lld) for wasm using emscripten (recipe
hosted on emscripten-forge
https://github.com/emscripten-forge/recipes/tree/main/recipes/recipes_emscripten/llvm)
I ended up with this error
```
 │ │ wasm-ld: error: ../../../../lib/libclangInterpreter.a(Wasm.cpp.o): undefined symbol: lld::wasm::link(llvm::ArrayRef<char const*>, llvm::raw_ostream&, llvm:
 │ │ :raw_ostream&, bool, bool)
 ```
 This is due to the link function here 
 https://github.com/llvm/llvm-project/blob/a4819bd46d8baebc3aaa8b38f78065de33593199/clang/lib/Interpreter/Wasm.cpp#L25-L30
 
 This was added through this PR (https://github.com/llvm/llvm-project/pull/86402) as an attempt to support running clang-repl and executing C++ code interactively inside a Javascript engine using WebAssembly when built with Emscripten.
 
 The definition for link is present in lldwasm and when building for the emscripten platform we should be linking against it.



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