diff --git a/CMakeLists.txt b/CMakeLists.txt
index b3de4b4..ecffbaa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,10 +24,10 @@ if (${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION} GREATER 3.0)
   set(CMAKE_CXX_STANDARD_REQUIRED on)
 else ()
   if (CMAKE_COMPILER_IS_GNUCXX)
-    message ("Assuming that GNU CXX uses -std=c++11 flag for C++11 compatibility.")
+    message ("** Assuming that GNU CXX uses -std=c++11 flag for C++11 compatibility.")
     list(APPEND CMAKE_CXX_FLAGS "-std=c++11")
   else()
-    message ("No CMAKE C++11 check. If the build breaks, you're on your own.")
+    message ("** No CMAKE C++11 check. If the build breaks, you're on your own.")
   endif()
 endif ()
 
@@ -72,9 +72,6 @@ include (CheckIncludeFileCXX)
 check_include_file_cxx (attr/xattr.h HAVE_ATTR_XATTR_H)
 check_include_file_cxx (sys/xattr.h HAVE_SYS_XATTR_H)
 
-# Look for old pre-C++11 headers.
-check_include_file_cxx (tr1/memory HAVE_TR1_MEMORY)
-
 # Check if xattr functions take extra arguments, as they do on OSX.
 # Output error is misleading, so do this test quietly.
 include (CheckCXXSourceCompiles)
diff --git a/config.h.cmake b/config.h.cmake
index 2cf6227..2beb78d 100644
--- a/config.h.cmake
+++ b/config.h.cmake
@@ -4,8 +4,6 @@
 #cmakedefine HAVE_SYS_XATTR_H
 #cmakedefine XATTR_ADD_OPT
 
-#cmakedefine HAVE_TR1_MEMORY
-
 #cmakedefine HAVE_LCHMOD
 
 /* TODO: add other thread library support. */