If pg_ctl stop fails, print an error message and exit (instead of going out

of our way to ignore the exit status).  If this ever really happens, worst
case you will not see the "score" at the bottom of the test run.

src/test/regress/pg_regress.c

@@ -11,7 +11,7 @@
  * Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- * $PostgreSQL: pgsql/src/test/regress/pg_regress.c,v 1.50 2008/11/20 15:03:39 mha Exp $
+ * $PostgreSQL: pgsql/src/test/regress/pg_regress.c,v 1.51 2008/11/25 11:49:35 petere Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -280,7 +280,14 @@ stop_postmaster(void)
 		snprintf(buf, sizeof(buf),
 				 SYSTEMQUOTE "\"%s/pg_ctl\" stop -D \"%s/data\" -s -m fast" SYSTEMQUOTE,
 				 bindir, temp_install);
-		r = system(buf);			/* ignore exit status. Store in variable to silence gcc */
+		r = system(buf);
+		if (r != 0)
+		{
+			fprintf(stderr, _("\n%s: could not stop postmaster: exit code was %d\n"),
+					progname, r);
+			exit(2);   /* not exit_nicely(), that would be recursive */
+		}
+
 		postmaster_running = false;
 	}
 }