Finally, a clean SDCC compile

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@20 42af7a65-404d-4744-a932-0658087f49c3

drivers/Makefile

@@ -69,7 +69,7 @@ $(BIN):	$(OBJS)
 depend: .depend
 
 clean:
-	rm -f $(BIN) *.o *~
+	rm -f $(BIN) *.o *.asm *.lst *.sym *.adb *~
 
 distclean: clean
 	rm -f Make.dep .depend

drivers/dev_null.c

@@ -61,8 +61,11 @@ static ssize_t devnull_write(struct file *, const char *, size_t);
 
 static struct file_operations devnull_fops =
 {
-  .read		= devnull_read,
-  .write	= devnull_write,
+  NULL,          /* open */
+  NULL,          /* close */
+  devnull_read,  /* read */
+  devnull_write, /* write */
+  NULL           /* ioctl */
 };
 
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