$FreeBSD$

--- tools/clang/Makefile.orig
+++ tools/clang/Makefile
@@ -14,7 +14,7 @@
 
 IS_TOP_LEVEL := 1
 CLANG_LEVEL := .
-DIRS := include lib tools runtime docs
+DIRS := include lib tools runtime %%DOCSRCDIR%%
 
 PARALLEL_DIRS :=