Disabled MSVC warnings C4267 and C4018 when building SDL.

dependencies/CMakeLists.txt

@@ -60,6 +60,10 @@ endif()
 if(NOT TARGET mirrage::deps::SDL2)
 	message("Building SDL2 from source")
 	add_subdirectory(SDL)
+	if(MSVC)
+		target_compile_options(SDL2 PRIVATE /wd4267 /wd4018)
+		target_compile_options(SDL2-static PRIVATE /wd4267 /wd4018)
+	endif()
 	add_library(mirrage::deps::SDL2 ALIAS SDL2-static)
 	add_library(mirrage::deps::SDL2main ALIAS SDL2main)
 endif()