1 files changed, 4 insertions, 0 deletions
diff --git a/mkfs.c b/mkfs.c
index f015edd..b50b503 100644
--- a/mkfs.c
+++ b/mkfs.c
@@ -11,6 +11,10 @@
 #include "stat.h"
 #include "param.h"
 
+#ifndef _LP64
+#error "Integers are not 32 bits"
+#endif
+
 int nblocks = 985;
 int nlog = LOGSIZE;
 int ninodes = 200;