Index: CMakeLists.txt
===================================================================
--- CMakeLists.txt	(revision 127962)
+++ CMakeLists.txt	(working copy)
@@ -142,6 +142,7 @@
   list( GET CTG_DEFAULT_ARGS 0 output_file )
   if( CTG_TARGET )
     add_custom_target( ${CTG_TARGET} DEPENDS ${output_file} ${CTG_DEPENDS} )
+    add_dependencies( ${CTG_TARGET} tblgen )
     set_target_properties( ${CTG_TARGET} PROPERTIES FOLDER "Clang tablegenning")
   endif()
 endfunction(clang_tablegen)
Index: lib/Headers/CMakeLists.txt
===================================================================
--- lib/Headers/CMakeLists.txt	(revision 127962)
+++ lib/Headers/CMakeLists.txt	(working copy)
@@ -72,6 +72,7 @@
 endif ()
 
 add_custom_target(clang-headers ALL DEPENDS ${out_files})
+add_dependencies(clang-headers tblgen)
 set_target_properties(clang-headers PROPERTIES FOLDER "Misc")
 
 install(FILES ${files} ${output_dir}/arm_neon.h