tiny bits from sources.  should have no effect.

Reference: /n/atom/patch/applied/mknit
Date: Sat Mar  8 15:32:15 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/cmd/mk/mk.h	Sat Mar  8 15:32:03 2014
+++ /sys/src/cmd/mk/mk.h	Sat Mar  8 15:32:04 2014
@@ -76,7 +76,7 @@
 {
 	char		*name;
 	long		time;
-	unsigned short	flags;
+	ushort		flags;
 	Arc		*prereqs;
 	struct Node	*next;		/* list for a rule */
 } Node;
--- /sys/src/cmd/mk/archive.c	Sat Mar  8 15:32:05 2014
+++ /sys/src/cmd/mk/archive.c	Sat Mar  8 15:32:05 2014
@@ -140,7 +140,7 @@
 		return 0;
 	}
 	close(fd);
-	return !strncmp(ARMAG, buf, SARMAG);
+	return strncmp(ARMAG, buf, SARMAG) == 0;
 }
 
 static char*