Index: runtime/Makefile
===================================================================
--- runtime/Makefile
+++ runtime/Makefile
@@ -13,7 +13,11 @@
 include $(omp_root)/tools/common.inc
 .PHONY: default all omp
 
-default: omp
+default:
+	@echo --- This Makefile system is deprecated and is not being updated anymore.
+	@echo --- It will be deleted in the future.
+	@echo --- To build libomp, please use the CMake build system
+	@echo --- which is documented in Build_With_CMake.txt
 
 all: omp stubs
 
Index: runtime/README.txt
===================================================================
--- runtime/README.txt
+++ runtime/README.txt
@@ -34,8 +34,11 @@
 The runtime/Build_With_CMake.txt file has a description of how to
 build with Cmake.
 
-Building with the Makefile
+Building with the Makefile (deprecated)
 ==========================
+*** This build system is no longer being updated and should not be used
+*** to build libomp.  Please use the CMake build system.
+
 The Makefile at the top-level will attempt to detect what it needs to
 build the LLVM* OpenMP* Runtime Library.  To see the default settings, 
 type:
Index: www/README.txt
===================================================================
--- www/README.txt
+++ www/README.txt
@@ -34,8 +34,11 @@
 The runtime/Build_With_CMake.txt file has a description of how to
 build with Cmake.
 
-Building with the Makefile
+Building with the Makefile (deprecated)
 ==========================
+*** This build system is no longer being updated and should not be used
+*** to build libomp.  Please use the CMake build system.
+
 The Makefile at the top-level will attempt to detect what it needs to
 build the LLVM* OpenMP* Runtime Library.  To see the default settings, 
 type: