added the ASSERT and VERIFY macros to logging to help detect problems

src/Makefile

@@ -1,6 +1,6 @@
 OBJS=main.o sysinput.o fbinit.o fbprimitive.o log.o gpio.o msg_queue.o time_func.o config.o splash.o
 LIBS=-lbcm2835 -lpthread
-CFLAGS=-g
+CFLAGS=-g -O -DDEBUG_ASSERT
 
 upiwin: $(OBJS)
 	gcc -o upiwin $(OBJS) $(LIBS)