oops.

Reference: /n/atom/patch/applied/vlrtfixup
Date: Fri Mar 21 01:44:53 CET 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/libc/386/vlrt.c	Fri Mar 21 01:44:48 2014
+++ /sys/src/libc/386/vlrt.c	Fri Mar 21 01:44:49 2014
@@ -114,7 +114,7 @@
 }
 
 ulong	_div64by32(Vlong, ulong, ulong*);
-void	_mul64by32(Vlong*, Vlong, ulong);
+int	_mul64by32(Vlong*, Vlong, ulong);
 
 static void
 slowdodiv(Vlong num, Vlong den, Vlong *q, Vlong *r)