use gnu install dirs and add COMPATIBILITY argument

Author: TheLartians

CMakeLists.txt

@@ -7,29 +7,32 @@ set(
 )
 
 function(packageProject)
+  include(CMakePackageConfigHelpers)
+  include(GNUInstallDirs)
 
-  cmake_parse_arguments(PROJECT "" "NAME;VERSION;INCLUDE_DIR;INCLUDE_DESTINATION;BINARY_DIR" "DEPENDENCIES" ${ARGN})
+  cmake_parse_arguments(PROJECT "" "NAME;VERSION;INCLUDE_DIR;INCLUDE_DESTINATION;BINARY_DIR;COMPATIBILITY" "DEPENDENCIES" ${ARGN})
 
-  include(CMakePackageConfigHelpers)
+  # handle default arguments
+  if (NOT DEFINED PROJECT_COMPATIBILITY)
+    set(PROJECT_COMPATIBILITY AnyNewerVersion)
+  endif()
 
   write_basic_package_version_file(
     "${PROJECT_BINARY_DIR}/${PROJECT_NAME}ConfigVersion.cmake"
     VERSION ${PROJECT_VERSION}
-    COMPATIBILITY AnyNewerVersion
+    COMPATIBILITY ${PROJECT_COMPATIBILITY}
   )
 
   install(
     TARGETS ${PROJECT_NAME}
     EXPORT ${PROJECT_NAME}Targets
-    LIBRARY DESTINATION lib/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Runtime
-    ARCHIVE DESTINATION lib/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Development
-    RUNTIME DESTINATION bin/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Runtime
-    PUBLIC_HEADER DESTINATION include/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Development
-    BUNDLE DESTINATION bin COMPONENT Runtime
+    LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Runtime
+    ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Development
+    RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Runtime
+    BUNDLE DESTINATION ${CMAKE_INSTALL_BINDIR}/${PROJECT_NAME}-${PROJECT_VERSION} COMPONENT Runtime
+    PUBLIC_HEADER DESTINATION ${INCLUDE_DESTINATION} COMPONENT Development
   )
 
-  include(CMakePackageConfigHelpers)
-
   configure_package_config_file(
     ${PACKAGE_PROJECT_CONFIG_FILE_PATH}
     "${PROJECT_BINARY_DIR}/${PROJECT_NAME}Config.cmake"