Update some cmake flags

CMakeLists.txt

@@ -11,6 +11,7 @@ if ("${PLATFORM}" STREQUAL "OS64" OR "${PLATFORM}" STREQUAL "OS64COMBINED")
 endif ()
 
 set(CMAKE_POLICY_DEFAULT_CMP0077 NEW)
+set(CMAKE_POLICY_DEFAULT_CMP0069 NEW)
 set(CMAKE_CXX_STANDARD 20)
 
 set_property(GLOBAL PROPERTY USE_FOLDERS ON)

cmake/functions/SetCompilerSettings.cmake

@@ -1,6 +1,10 @@
-function(SetOptimisationSettings)
+include(CheckIPOSupported)
 
-    set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+function(SetOptimisationSettings)
+    check_ipo_supported(RESULT result)
+    if(result)
+        set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE PARENT_SCOPE)
+    endif ()
 
     if (LINUX)
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -march=native -mtune=native" PARENT_SCOPE)
@@ -18,6 +22,7 @@ function(SetWarningSettings TARGET)
     elseif (WIN32)
         if (MSVC)
             add_definitions(-D_CRT_SECURE_NO_WARNINGS)
+            add_compile_options(/wd4068)
             set_target_properties(${TARGET} PROPERTIES COMPILE_FLAGS "/wd4068")
             set_target_properties(${TARGET} PROPERTIES COMPILE_FLAGS "/we4715")
             set_target_properties(${TARGET} PROPERTIES LINK_FLAGS "/ignore:4099")