MemorySanitizerLibcxxHowTo document is out-of-date

[aDotInTheVoid]

On https://github.com/google/sanitizers/wiki/MemorySanitizerLibcxxHowTo#instrumented-libc, the instructions say to run:

cmake -GNinja ../llvm \
	-DCMAKE_BUILD_TYPE=Release \
	-DLLVM_ENABLE_PROJECTS="libcxx;libcxxabi" \
	-DCMAKE_C_COMPILER=clang \
	-DCMAKE_CXX_COMPILER=clang++ \
	-DLLVM_USE_SANITIZER=MemoryWithOrigins

However this fails with:

CMake Error at CMakeLists.txt:130 (MESSAGE):
  libcxx isn't a known project:
  bolt;clang;clang-tools-extra;compiler-rt;cross-project-tests;libc;libclc;lld;lldb;mlir;openmp;polly;pstl;flang.
  Did you mean to enable it as a runtime in LLVM_ENABLE_RUNTIMES?

Based on reading the libc++ vendor docs, the correct build command should be:

cmake -GNinja -S ../runtimes \
    -DCMAKE_BUILD_TYPE=Release \
    -DLLVM_ENABLE_RUNTIMES="libcxx;libcxxabi;libunwind" \
    -DCMAKE_C_COMPILER=clang \
    -DCMAKE_CXX_COMPILER=clang++ \
    -DLLVM_USE_SANITIZER=MemoryWithOrigins

Could this be updated on the wiki?

[aDotInTheVoid]

Caused by llvm/llvm-project@258477e