Add compile options to reduce stack usage.

Add -fno-defer-pop
Add --param large-stack-frame=8 to prevent stack explosion on gcc 4.3.
diff --git a/Makefile b/Makefile
index 151757a..c465120 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,8 @@
 COMMONCFLAGS += $(call cc-option,$(CC),-fno-stack-protector-all,)
 
 CFLAGS = $(COMMONCFLAGS) -g
-CFLAGS16INC = $(COMMONCFLAGS) -DMODE16 -fno-jump-tables
+CFLAGS16INC = $(COMMONCFLAGS) -DMODE16 -fno-jump-tables -fno-defer-pop \
+              $(call cc-option,$(CC),--param large-stack-frame=8,)
 CFLAGS16 = $(CFLAGS16INC) -g
 
 TABLETMP=$(addprefix $(OUT), $(patsubst %.c,%.16.s,$(TABLESRC)))