+if (MSVC)
+ # don't install man pages on Windows
+else(MSVC)
+
+if(${CMAKE_VERSION} VERSION_GREATER 2.8.4)
+ # use official include provided by latest CMake
+ include(GNUInstallDirs)
+else(${CMAKE_VERSION} VERSION_GREATER 2.8.4)
+ # backward compatibility: use our own module for older cmake versions
+ include(OldGNUInstallDirs)
+endif(${CMAKE_VERSION} VERSION_GREATER 2.8.4)