Squashed 'cmake/' content from commit 2d25566

git-subtree-dir: cmake
git-subtree-split: 2d25566a1c5162ce3fd6bfc268d5665de182af89

UseTR1.cmake

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+# - Use settings to enable access to C++ TR1
+#
+# This calls include_directories and link_directories as needed to
+# permit TR1 support.
+#
+# Original Author:
+# 2009-2010 Ryan Pavlik <rpavlik@iastate.edu> <abiryan@ryand.net>
+# http://academic.cleardefinition.com
+# Iowa State University HCI Graduate Program/VRAC
+#
+#          Copyright Iowa State University 2009-2010
+# Distributed under the Boost Software License, Version 1.0.
+#    (See accompanying file LICENSE_1_0.txt or copy at
+#          http://www.boost.org/LICENSE_1_0.txt)
+
+if(__use_tr1)
+	return()
+endif()
+set(__use_tr1 YES)
+
+
+if(TR1_INCLUDE_DIRS)
+	include_directories(${TR1_INCLUDE_DIRS})
+endif()
+
+if(TR1_LIBRARY_DIRS)
+	link_directories(${TR1_LIBRARY_DIRS})
+endif()