LIBCXXABI_LIBUNWIND_INCLUDES is already set before calling find_path, and find_path will not update it. 
So cmake will throw error "include_directories given empty-string as include directory". 
Use other variable name for the include path and do not find the default libunwind.h in the system path.

Patch by Jingyi Wei!

git-svn-id: 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed