Make sure the zap target is available

git-svn-id: svn://svn.cc65.org/cc65/trunk@1932 b7a2c559-68d2-44c3-8de9-860c34a00d81

libsrc/conio/Makefile

@@ -4,6 +4,9 @@
 
 .SUFFIXES: .o .s .c
 
+#--------------------------------------------------------------------------
+# Rules
+
 %.o:   	%.c
 	@$(CC) $(CFLAGS) $<
 	@$(AS) -o $@ $(AFLAGS) $(*).s
@@ -11,6 +14,9 @@
 %.o:	%.s
 	@$(AS) -g -o $@ $(AFLAGS) $<
 
+#--------------------------------------------------------------------------
+# Object files
+
 OBJS =	_cursor.o	\
         cprintf.o 	\
 	cputhex.o	\
@@ -19,7 +25,15 @@ OBJS =	_cursor.o	\
 	scrsize.o       \
         vcprintf.o
 
+#--------------------------------------------------------------------------
+# Targets
+
+.PHONY:	all clean zap
+
 all:  	$(OBJS)
 
 clean:
 	@rm -f *~ $(OBJS)
+
+zap:	clean
+