(main): Test HAVE_GETCWD rather than BSD_SYSTEM.

lib-src/emacsclient.c

@@ -418,19 +418,19 @@ main (argc, argv)
       fail (argc, argv);
     }
 
-#ifdef BSD_SYSTEM
-  cwd = getwd (string);
-#else
+#ifdef HAVE_GETCWD
   cwd = getcwd (string, sizeof string);
+#else
+  cwd = getwd (string);
 #endif
   if (cwd == 0)
     {
       /* getwd puts message in STRING if it fails.  */
       fprintf (stderr, "%s: %s (%s)\n", argv[0],
-#ifdef BSD_SYSTEM
-	       string,
-#else
+#ifdef HAVE_GETCWD
 	       "Cannot get current working directory",
+#else
+	       string,
 #endif
 	       strerror (errno));
       fail (argc, argv);