Index: cfe/trunk/tools/libclang/CMakeLists.txt
===================================================================
--- cfe/trunk/tools/libclang/CMakeLists.txt
+++ cfe/trunk/tools/libclang/CMakeLists.txt
@@ -141,6 +141,11 @@
   PATTERN ".svn" EXCLUDE
   )
 
+# LLVM_DISTRIBUTION_COMPONENTS requires that each component have both a
+# component and an install-component target, so add a dummy libclang-headers
+# target to allow using it in LLVM_DISTRIBUTION_COMPONENTS.
+add_custom_target(libclang-headers)
+
 if (NOT CMAKE_CONFIGURATION_TYPES) # don't add this for IDE's.
   add_custom_target(install-libclang-headers
     DEPENDS