From 903e318b464d8216b38bc11aeaa0aa880849ab80 Mon Sep 17 00:00:00 2001
From: Lars Bilke <lars.bilke@ufz.de>
Date: Wed, 7 Sep 2011 18:34:33 +0200
Subject: [PATCH] Added missing cmake module.
---
CleanDirectoryList.cmake | 48 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)
create mode 100644 CleanDirectoryList.cmake
diff --git a/CleanDirectoryList.cmake b/CleanDirectoryList.cmake
new file mode 100644
index 00000000000..58b8963f9ee
--- /dev/null
+++ b/CleanDirectoryList.cmake
@@ -0,0 +1,48 @@
+# - Removes duplicate entries and non-directories from a provided list
+#
+# clean_directory_list(<listvar> [<additional list items>...])
+#
+# Requires CMake 2.6 or newer (uses the 'function' command)
+#
+# 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(__clean_directory_list)
+ return()
+endif()
+set(__clean_directory_list YES)
+
+function(clean_directory_list _var)
+ # combine variable's current value with additional list items
+ set(_in ${${_var}} ${ARGN})
+
+ if(_in)
+ # Initial list cleaning
+ list(REMOVE_DUPLICATES _in)
+
+ # Grab the absolute path of each actual directory
+ set(_out)
+ foreach(_dir ${_in})
+ if(IS_DIRECTORY "${_dir}")
+ get_filename_component(_dir "${_dir}" ABSOLUTE)
+ file(TO_CMAKE_PATH "${_dir}" _dir)
+ list(APPEND _out "${_dir}")
+ endif()
+ endforeach()
+
+ if(_out)
+ # Clean up the output list now
+ list(REMOVE_DUPLICATES _out)
+ endif()
+
+ # return _out
+ set(${_var} "${_out}" PARENT_SCOPE)
+ endif()
+endfunction()
--
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