[PGO] Value profiling support

[oota-llvm.git] / docs / BuildingLLVMWithAutotools.rst

diff --git a/docs/BuildingLLVMWithAutotools.rst b/docs/BuildingLLVMWithAutotools.rst
index 6f9a13410555c81db372d8ee7066e0d8befa0380..083ead67ebb6def51a761d67d943bd32fd530190 100644 (file)
--- a/docs/BuildingLLVMWithAutotools.rst
+++ b/docs/BuildingLLVMWithAutotools.rst
@@ -5,6 +5,12 @@ Building LLVM With Autotools
 .. contents::
    :local:
 
+.. warning::
+
+    Building LLVM with autoconf is deprecated as of 3.8. The autoconf build
+    system will be removed in 3.9. Please migrate to using CMake. For more
+    information see: `Building LLVM with CMake <CMake.html>`_
+
 Overview
 ========