[libc] Add missing TableGen dependency

Differential Revision: https://reviews.llvm.org/D87689
diff --git a/libc/utils/LibcTableGenUtil/CMakeLists.txt b/libc/utils/LibcTableGenUtil/CMakeLists.txt
index ae887a8..d2632a2 100644
--- a/libc/utils/LibcTableGenUtil/CMakeLists.txt
+++ b/libc/utils/LibcTableGenUtil/CMakeLists.txt
@@ -2,6 +2,6 @@
   LibcTableGenUtil
   APIIndexer.cpp
   APIIndexer.h
-  LINK_COMPONENTS Support
+  LINK_COMPONENTS Support TableGen
 )
 target_include_directories(LibcTableGenUtil PUBLIC ${LIBC_SOURCE_DIR})