revert r1.68.  This breaks 'make install' without doing 'make' first, but
fixes PR1208.

llvm-svn: 34466
diff --git a/llvm/Makefile b/llvm/Makefile
index 8f16ce2..b6ee8b0 100644
--- a/llvm/Makefile
+++ b/llvm/Makefile
@@ -40,6 +40,13 @@
   OPTIONAL_DIRS :=
 endif
 
+# Don't install utils, examples, or projects they are only used to 
+# build LLVM.
+ifeq ($(MAKECMDGOALS),install)
+  DIRS := $(filter-out utils, $(DIRS))
+  OPTIONAL_DIRS :=
+endif
+
 # Include the main makefile machinery.
 include $(LLVM_SRC_ROOT)/Makefile.rules