--- /sys/src/libc/9syscall/mkfile	Wed May 14 16:45:01 2014
+++ /sys/src/libc/9syscall/mkfile	Fri Jan  9 19:30:23 2015
@@ -66,7 +66,7 @@
 			# in a register, if the system call takes no arguments
 			# there will be no 'a0+0(FP)' reserved on the stack.
 			#
-			if(! ~ $i asystemcallwithnoarguments || ! ~ $i nsec)
+			if(! ~ $i nsec)
 				echo MOVQ RARG, 'a0+0(FP)'
 			echo MOVQ '$'$n, RARG
 			echo SYSCALL