[libunwind] Fix compile error with CROSS_UNWINDING

Reviewed By: #libunwind, MaskRay, mgorny

Differential Revision: https://reviews.llvm.org/D134969

NOKEYCHECK=True
GitOrigin-RevId: f5c9931fefcab8de07a6c08c39b582fa58859dc9
1 file changed
tree: 18a05491311dd95d60cc8c3534666b5293769bcd
  1. cmake/
  2. docs/
  3. include/
  4. src/
  5. test/
  6. .clang-format
  7. CMakeLists.txt
  8. LICENSE.TXT