/tmp/ccJEa2nO.o:dlfcn.c:(.text+0x2fb): undefined reference to `sprintf_s' and WinMain@16 collect2: error: ld returned 1 exit statussprintf_s should be provided by the mingw runtime,
Google says it was added in January 2014: http://sourceforge.net/p/mingw-w64/code/6469 Martin
