Suppress all the deprecation warnings. MSFT doesn't know from POSIX.

src/CMakeLists.txt

@@ -9,6 +9,10 @@ if(NOT PROJECTS)
 	endif()
 endif()
 
+if(MSVC)
+	set_property(DIRECTORY APPEND PROPERTY COMPILE_OPTIONS /wd4996)
+endif()
+
 list(FIND PROJECTS SBBS3 BUILD_SBBS3)
 if(BUILD_SBBS3 GREATER -1)
 	if(NOT XPDEV_ADDED)