close format-security warning

cmake/compiler/gcc.cmake

 set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++14")
 set (CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -D_DEBUG")
 set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -D_DEBUG")
-add_definitions ( "-fexceptions" "-fomit-frame-pointer" "-fno-strict-aliasing" "-Wno-multichar" )
+add_definitions ( "-fexceptions" "-fomit-frame-pointer" "-fno-strict-aliasing" "-Wno-format-security" )

premake4.lua

@@ -28,7 +28,7 @@ solution "ygo"
         defines { "_CRT_SECURE_NO_WARNINGS" }
 
     configuration "not vs*"
-        buildoptions { "-fno-strict-aliasing", "-Wno-multichar" }
+        buildoptions { "-fno-strict-aliasing", "-Wno-format-security" }
     configuration {"not vs*", "windows"}
         buildoptions { "-static-libgcc" }