Index: uspace/lib/minix/minix.h
===================================================================
--- uspace/lib/minix/minix.h	(revision 340b56900def3a222b548e0e22236024e3c08a32)
+++ uspace/lib/minix/minix.h	(revision f213ae71b29e8f675093e72eb899dd577948e864)
@@ -38,5 +38,7 @@
 #define MFS_BLOCKSIZE		1024
 #define S_ISDIR(m)		(((m) & S_IFMT) == S_IFDIR)
-#define S_IFDIR			0040000
+#define S_ISREG(m)		(((m) & S_IFMT) == S_IFREG)
+#define S_IFDIR			0040000		/*Directory*/
+#define S_IFREG			0100000		/*Regular file*/
 #define S_IFMT			00170000