--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Resources/CMake/DownloadPackage.cmake	Thu Jul 19 14:32:22 2012 +0200
@@ -0,0 +1,61 @@
+macro(GetUrlFilename TargetVariable Url)
+  string(REGEX REPLACE "^.*/" "" ${TargetVariable} "${Url}")
+endmacro()
+
+
+macro(GetUrlExtension TargetVariable Url)
+  #string(REGEX REPLACE "^.*/[^.]*\\." "" TMP "${Url}")
+  string(REGEX REPLACE "^.*\\." "" TMP "${Url}")
+  string(TOLOWER "${TMP}" "${TargetVariable}")
+endmacro()
+
+
+macro(DownloadPackage Url TargetDirectory PreloadedVariable UncompressArguments)
+  if (NOT IS_DIRECTORY "${TargetDirectory}")
+    GetUrlFilename(TMP_FILENAME "${Url}")
+    if ("${PreloadedVariable}" STREQUAL "")
+      set(TMP_PATH "${CMAKE_SOURCE_DIR}/ThirdPartyDownloads/${TMP_FILENAME}")
+      if (NOT EXISTS "${TMP_PATH}")
+        message("Downloading ${Url}")
+        file(DOWNLOAD "${Url}" "${TMP_PATH}" SHOW_PROGRESS)
+      else()
+        message("Already downloaded ${Url}")
+      endif()
+    else()
+      message("Using preloaded archive ${PreloadedVariable} for ${Url}")
+      set(TMP_PATH "${PreloadedVariable}")
+    endif()
+
+    GetUrlExtension(TMP_EXTENSION "${Url}")
+    #message(${TMP_EXTENSION})
+
+    if ("${CMAKE_HOST_SYSTEM_NAME}" STREQUAL "Linux")
+      if ("${TMP_EXTENSION}" STREQUAL "zip")
+        execute_process(
+          COMMAND sh -c "unzip ${TMP_PATH} ${UncompressArguments}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          )
+      elseif (("${TMP_EXTENSION}" STREQUAL "gz") OR ("${TMP_EXTENSION}" STREQUAL "tgz"))
+        #message("tar xvfz ${TMP_PATH} ${UncompressArguments}")
+        execute_process(
+          COMMAND sh -c "tar xvfz ${TMP_PATH} ${UncompressArguments}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          )
+      elseif ("${TMP_EXTENSION}" STREQUAL "bz2")
+        execute_process(
+          COMMAND sh -c "tar xvfj ${TMP_PATH} ${UncompressArguments}"
+          WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
+          )
+      else()
+        message(FATAL_ERROR "Unknown package format.")
+      endif()
+    else()
+      message(FATAL_ERROR "Support your platform here")
+    endif()
+
+    if (NOT IS_DIRECTORY "${TargetDirectory}")
+      message(FATAL_ERROR "The package was not uncompressed at the proper location. Check the CMake instructions.")
+    endif()
+  endif()
+endmacro()
+