--- projects/CMakeLists.txt.orig	2017-01-01 11:36:50 UTC
+++ projects/CMakeLists.txt
@@ -25,7 +25,9 @@ if(${LLVM_BUILD_RUNTIME})
     # first.
     add_llvm_external_project(libcxxabi)
     add_llvm_external_project(libcxx)
-    add_llvm_external_project(libunwind)
+    if(FALSE)
+        add_llvm_external_project(libunwind)
+    endif()
   endif()
   if(NOT LLVM_BUILD_EXTERNAL_COMPILER_RT)
     add_llvm_external_project(compiler-rt)
