remake4.test spurious failure on testdrive BSDs

[Ralf Wildenhues]

On the FreeBSD and NetBSD testdrive hosts, remake4.test fails.  It can
be "fixed" by adding some more sleep.  For lack of better knowledge, I
assume non-synchronized clocks with the NFS server or so, given the
other oddities we've found with those systems.

What do you think?  Does anybody have a better explanation for this?

Cheers,
Ralf

        * tests/remake4.test: Wait after touching `aclocal.m4' to ensure
        strictly different times even with "interesting" NFS setups.

Index: tests/remake4.test
===================================================================
RCS file: /cvs/automake/automake/tests/remake4.test,v
retrieving revision 1.3
diff -u -r1.3 remake4.test
--- tests/remake4.test  14 May 2005 20:28:56 -0000      1.3
+++ tests/remake4.test  6 May 2006 16:20:49 -0000
@@ -1,5 +1,5 @@
 #! /bin/sh
-# Copyright (C) 2003  Free Software Foundation, Inc.
+# Copyright (C) 2003, 2006  Free Software Foundation, Inc.
 #
 # This file is part of GNU Automake.
 #
@@ -53,6 +53,7 @@
 $MAKE
 $sleep
 touch aclocal.m4
+$sleep
 $MAKE distdir
 cd remake4-1.0
 test ! -f rebuild_ok