diff --git a/src/runtime/Makefile b/src/runtime/Makefile
index 2cdb4a97937..b9e57701037 100644
--- a/src/runtime/Makefile
+++ b/src/runtime/Makefile
@@ -59,5 +59,5 @@ sys_file.$O:	sys_file.c sys_types.h $(OS_H)
 %.$O:	%.s
 	$(AS) $<
 
-runtime.acid: runtime.h
-	$(CC) -a runtime.h >runtime.acid
+runtime.acid: runtime.h proc.c
+	$(CC) -a proc.c >runtime.acid
diff --git a/src/runtime/proc.c b/src/runtime/proc.c
index 4fdcd4ec293..58c791b6e42 100644
--- a/src/runtime/proc.c
+++ b/src/runtime/proc.c
@@ -297,7 +297,7 @@ static void
 readylocked(G *g)
 {
 	M *m;
-	
+
 	if(g->m){
 		// Running on another machine.
 		// Ready it when it stops.
@@ -346,7 +346,7 @@ nextgandunlock(void)
 
 	mput(m);
 	if(sched.mcount == sched.mwait)
-		prints("warning: all goroutines are asleep - deadlock!\n");
+		throw("all goroutines are asleep - deadlock!");
 	m->nextg = nil;
 	noteclear(&m->havenextg);
 	unlock(&sched);
@@ -377,7 +377,7 @@ scheduler(void)
 		// Jumped here via gosave/gogo, so didn't
 		// execute lock(&sched) above.
 		lock(&sched);
-		
+
 		if(sched.predawn)
 			throw("init sleeping");
 
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 86afaaa7c21..f590472439b 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -186,7 +186,6 @@ struct	SigTab
  */
 extern	Alg	algarray[3];
 extern	string	emptystring;
-M*	allm;
 G*	allg;
 int32	goidgen;
 extern	int32	gomaxprocs;