Fix the CMake build on Mac when setting MACOSX_DEPLOYMENT_TARGET=10.6

The build file was trying to use LIBCXXABI_VERSION, which isn't set
anywhere.

git-svn-id: https://llvm.org/svn/llvm-project/libcxxabi/trunk@215465 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed
tree: 9e9be5abf1b01018f98224d331aafda86c06a87e
  1. CMakeLists.txt
  2. CREDITS.TXT
  3. LICENSE.TXT
  4. cmake/
  5. include/
  6. lib/
  7. src/
  8. test/
  9. www/