--- CMakeLists.txt.orig	2021-02-21 12:07:18 UTC
+++ CMakeLists.txt
@@ -108,15 +108,6 @@ elseif(WIN32)
 endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX OR MINGW OR ${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
-    add_compile_options("$<$<CONFIG:RELEASE>:-W;-Wall;-O3;-pedantic;-fomit-frame-pointer>")
-    add_compile_options("$<$<CONFIG:DEBUG>:-W;-Wall;-O0;-pedantic>")
-
-    # Automatically use ccache if found
-    find_program(CCACHE_FOUND ccache)
-    if(CCACHE_FOUND)
-        set_property(GLOBAL PROPERTY RULE_LAUNCH_COMPILE ccache)
-        set_property(GLOBAL PROPERTY RULE_LAUNCH_LINK ccache)
-    endif(CCACHE_FOUND)
 
 elseif(MSVC)
     add_definitions(-DNOMINMAX)