diff --git a/clang-tools-extra/pseudo/lib/cxx/CMakeLists.txt b/clang-tools-extra/pseudo/lib/cxx/CMakeLists.txt
--- a/clang-tools-extra/pseudo/lib/cxx/CMakeLists.txt
+++ b/clang-tools-extra/pseudo/lib/cxx/CMakeLists.txt
@@ -1,3 +1,5 @@
+set(LLVM_LINK_COMPONENTS Support)
+
 add_clang_library(clangPseudoCXX
   CXX.cpp