decbdragon: fix warning

diff --git a/Kernel/tools/decbdragon.c b/Kernel/tools/decbdragon.c
index 6fb719c..fa43853 100755 (executable)
--- a/Kernel/tools/decbdragon.c
+++ b/Kernel/tools/decbdragon.c
@@ -1,6 +1,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <unistd.h>
+#include <fcntl.h>
 
 static enum {
   NEW_BLOCK,