cmake: use GNUInstallDirs (#187)

CMake/Modules/Install.cmake

 # install paths
 # -------------
+include(GNUInstallDirs)
+
 if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
     set (CMAKE_INSTALL_PREFIX /usr)
 endif()
-set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
-set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
-
-if(NOT LIBRARY_INSTALL_DIRECTORY)
-	set(LIBRARY_INSTALL_DIRECTORY "lib")
-endif()
-
 message ( "[Install] Install directory prefix is: ${CMAKE_INSTALL_PREFIX}" )
-message ( "[Install] Library install directory is: ${CMAKE_INSTALL_PREFIX}/${LIBRARY_INSTALL_DIRECTORY}" )
+message ( "[Install] Full install paths: ${CMAKE_INSTALL_FULL_BINDIR}, ${CMAKE_INSTALL_FULL_LIBDIR}, ${CMAKE_INSTALL_FULL_INCLUDEDIR}" )
+
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${CMAKE_INSTALL_LIBDIR}")
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

CMake/templates/CMakeLists_bin.txt

@@ -23,4 +23,4 @@ target_include_directories(${{PROJECT_NAME}}
 target_link_libraries(${{PROJECT_NAME}} {target_libs})
 # Install
-install(TARGETS ${{PROJECT_NAME}} RUNTIME DESTINATION bin)
+install(TARGETS ${{PROJECT_NAME}} RUNTIME DESTINATION ${{CMAKE_INSTALL_BINDIR}})

CMake/templates/CMakeLists_lib.txt

@@ -30,12 +30,12 @@ set_target_properties(${{PROJECT_NAME}} PROPERTIES
         )
 # Install
-install(TARGETS ${{PROJECT_NAME}} LIBRARY DESTINATION ${{LIBRARY_INSTALL_DIRECTORY}})
+install(TARGETS ${{PROJECT_NAME}} LIBRARY DESTINATION ${{CMAKE_INSTALL_LIBDIR}})
 FOREACH(HEADER {include_files})
     get_filename_component(DIR ${{HEADER}} DIRECTORY)
     STRING(REGEX REPLACE "^src" "" DIR ${{DIR}})
-    INSTALL(FILES ${{HEADER}} DESTINATION include/algorithms-library/${{DIR}})
+    INSTALL(FILES ${{HEADER}} DESTINATION ${{CMAKE_INSTALL_INCLUDEDIR}}/algorithms-library/${{DIR}})
 ENDFOREACH(HEADER)
 ########################################################################################################################