unwind: remove another instance of -Wexpansion-to-defined

Remove the use of undefined behaviour in the c preprocessor by always defining
the value according to the state that was being checked.  NFC.

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@266927 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
tree: ec802a6ffacd6aa283a873c07f9c3c250f916c43
  1. cmake/
  2. include/
  3. src/
  4. test/
  5. .arcconfig
  6. .clang-format
  7. CMakeLists.txt