upsi i forgot to add single.c in the MinGW file

src/Makefile.MINGW

@@ -2,7 +2,7 @@
 LIBS=-L/usr/local/lib -lmingw32 -lSDLmain -lSDL -mwindows -mno-cygwin -liberty -lwsock32
 CFLAGS=-I/usr/local/include/SDL -Dmain=SDL_main -I/usr/include/mingw -DWIN32 -Uunix -mno-cygwin
 
-OBJS=bomb.o configuration.o debug.o gfx.o main.o field.o font.o game.o gamesrv.o menu.o netmenu.o network.o packets.o pkgcache.o player.o sysfunc.o udp.o chat.o multiwait.o keybinput.o
+OBJS=bomb.o configuration.o debug.o gfx.o main.o field.o font.o game.o gamesrv.o menu.o netmenu.o network.o packets.o pkgcache.o player.o sysfunc.o udp.o chat.o multiwait.o keybinput.o single.o
 
 
 all: config bomberclone