the source doesn't build itself.

Reference: /n/atom/patch/applied/paetasmk
Date: Sat Jun  7 05:58:26 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/src/9/pcpae/mkfile	Sat Jun  7 05:58:17 2014
+++ /sys/src/9/pcpae/mkfile	Sat Jun  7 05:58:18 2014
@@ -36,7 +36,8 @@
 	segment.$O\
 	sysfile.$O\
 	sysproc.$O\
-	taslock.$O\
+	mcslock.$O\
+#	taslock.$O\
 	tod.$O\
 
 OBJ=\