commit - c345061e8d81a737b2926da7ecad4b4389677fe8
commit + 005a85f3a2ef85ec1a64ce05a486c84e25cf6f94
blob - 3a4dd2c32f0351c289cf914b0f0a6697263e652f
blob + 986604831eace948e2556bb96ce0cef6d9a89308
--- src/cmd/rc/unixcrap.c
+++ src/cmd/rc/unixcrap.c
@@ -17,13 +17,29 @@ static int rlx[] = {
 	RLIMIT_CORE,
 	RLIMIT_DATA,
 	RLIMIT_FSIZE,
+#ifdef RLIMIT_MEMLOCK
 	RLIMIT_MEMLOCK,
+#else
+	0,
+#endif
+#ifdef RLIMIT_RSS
 	RLIMIT_RSS,
+#else
+	0,
+#endif
 	RLIMIT_NOFILE,
 	RLIMIT_STACK,
 	RLIMIT_CPU,
+#ifdef RLIMIT_NPROC
 	RLIMIT_NPROC,
+#else
+	0,
+#endif
+#ifdef RLIMIT_RSS
 	RLIMIT_RSS,
+#else
+	0,
+#endif
 };
 
 static void
blob - f0235a95d4b33307525654bae1ed0986460a1a4f
blob + 7d0ca916161abfcbd4246ef2dbe99d3abfe58920
--- src/lib9/await.c
+++ src/lib9/await.c
@@ -82,7 +82,11 @@ _await(int pid4, char *str, int n, int opt)
 	ulong u, s;
 
 	for(;;){
-		pid = wait4(pid4, &status, opt, &ru);
+		/* On Linux, pid==-1 means anyone; on SunOS, it's pid==0. */
+		if(pid4 == -1)
+			pid = wait3(&status, opt, &ru);
+		else
+			pid = wait4(pid4, &status, opt, &ru);
 		if(pid <= 0)
 			return -1;
 		u = ru.ru_utime.tv_sec*1000+((ru.ru_utime.tv_usec+500)/1000);
blob - ddedf62e776601edc9ef08d04f3cb2cfe89d8640
blob + 44c094310dea8af005afd02d100706989e934e47
--- src/lib9/post9p.c
+++ src/lib9/post9p.c
@@ -10,6 +10,7 @@ post9pservice(int fd, char *name)
 
 	if((ns = getns()) == nil)
 		return -1;
+
 	s = smprint("unix!%s/%s", ns, name);
 	free(ns);
 	if(s == nil)
@@ -27,6 +28,8 @@ post9pservice(int fd, char *name)
 		_exits("exec");
 	default:
 		w = wait();
+		if(w == nil)
+			return -1;
 		close(fd);
 		free(s);
 		if(w->msg && w->msg[0]){