Use configure_package_config_file over configure_file

Fixes #47

Author: Krzmbrzl

CMakeLists.txt

@@ -162,9 +162,10 @@ function(packageProject)
 
   mark_as_advanced("${PROJECT_NAME}_INSTALL_CMAKEDIR")
 
-  configure_file(
+  configure_package_config_file(
     ${PACKAGE_PROJECT_ROOT_PATH}/Config.cmake.in
-    "${PROJECT_BINARY_DIR}/${PROJECT_NAME_LOWER}-config.cmake" @ONLY
+    "${PROJECT_BINARY_DIR}/${PROJECT_NAME_LOWER}-config.cmake"
+    INSTALL_DESTINATION "${${PROJECT_NAME}_INSTALL_CMAKEDIR}"
   )
 
   install(

Config.cmake.in

@@ -1,3 +1,5 @@
+@PACKAGE_INIT@
+
 include(CMakeFindDependencyMacro)
 
 # ##################################################################################################
@@ -39,3 +41,9 @@ foreach(dependency ${SEPARATE_DEPENDENCIES})
 endforeach()
 
 include("${CMAKE_CURRENT_LIST_DIR}/@PROJECT_NAME@Targets.cmake")
+
+# ##################################################################################################
+# Final checks
+# ##################################################################################################
+
+check_required_components("${PROJECT_NAME}")