added the rules to create the splash screen data and the external

references to the binary data

src/Makefile

@@ -1,4 +1,4 @@
-OBJS=main.o sysinput.o fbinit.o log.o gpio.o msg_queue.o time_func.o
+OBJS=main.o sysinput.o fbinit.o log.o gpio.o msg_queue.o time_func.o splash.o
 LIBS=-lbcm2835 -lpthread
 
 upiwin: $(OBJS)
@@ -7,5 +7,11 @@ upiwin: $(OBJS)
 .c.o:
 	gcc -c $(CFLAGS) $<
 
+splash.o: splash.bin
+	ld -r -b binary --rename-section .data=.rodata,alloc,load,readonly,data,contents -o splash.o splash.bin
+
+splash.bin: splash.png ../buildutils/mksplash
+	../buildutils/mksplash splash.png splash.bin
+
 clean:
 	rm -f upiwin *.o *~