diff -ruN a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2021-05-03 12:55:07.561259897 +0300
+++ b/CMakeLists.txt	2021-05-03 12:55:36.772461830 +0300
@@ -70,9 +70,6 @@
 
 add_library(project_warnings INTERFACE)
 
-# enable cache system
-include(cmake/Cache.cmake)
-
 # standard compiler warnings
 include(cmake/CompilerWarnings.cmake)
 # set_project_warnings(project_warnings)