[libcxx-commits] [PATCH] D119538: [libcxxabi] [test] Depend on unwind only if available

Louis Dionne via Phabricator via libcxx-commits libcxx-commits at lists.llvm.org
Tue Feb 15 09:01:29 PST 2022


ldionne added inline comments.


================
Comment at: libcxxabi/test/CMakeLists.txt:66
   list(APPEND LIBCXXABI_TEST_DEPS cxx)
-  if (LIBCXXABI_USE_LLVM_UNWINDER)
+  if (LIBCXXABI_USE_LLVM_UNWINDER AND TARGET unwind)
     list(APPEND LIBCXXABI_TEST_DEPS unwind)
----------------
mgorny wrote:
> ldionne wrote:
> > Do I understand correctly that you're passing `LIBCXXABI_USE_LLVM_UNWINDER` but not including `libunwind` in `LLVM_ENABLE_RUNTIMES`? Is there a reason for doing that?
> Yes, I'm linking to system-installed libunwind.
Why are you specifying `LIBCXXABI_USE_LLVM_UNWINDER` then? That's the part I don't understand:

```
option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder.")
```

You specifically don't want to do that, right?



CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D119538/new/

https://reviews.llvm.org/D119538



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