[libvirt] [PATCH] tests: avoid realpath in test-lib.sh

[Eric Blake]

Ever since commit ace4aecd, running 'make check' on RHEL 6 produces:

./test-lib.sh: line 21: realpath: command not found

for every shell script test, because 'realpath' was not part of
coreutils back then.

* tests/test-lib.sh (_scriptdir): Compute with only portable shell.

Signed-off-by: Eric Blake <eblake at redhat.com>
---

A warning message is cosmetic, and not quite a build-breaker, so
I'll wait for a review before pushing this.

 tests/test-lib.sh |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/test-lib.sh b/tests/test-lib.sh
index 920b01e..8e0ce83 100644
--- a/tests/test-lib.sh
+++ b/tests/test-lib.sh
@@ -1,6 +1,6 @@
 # test-lib.sh: source this file; set up for tests

-# Copyright (C) 2008-2013 Red Hat, Inc.
+# Copyright (C) 2008-2013, 2016 Red Hat, Inc.
 #
 # This library is free software; you can redistribute it and/or
 # modify it under the terms of the GNU Lesser General Public
@@ -18,7 +18,7 @@
 #
 # Based on an idea from GNU coreutils

-_scriptdir="$(realpath $(dirname $0))"
+_scriptdir="$(unset CDPATH; cd $(dirname $0) && pwd)"
 test -z "$abs_srcdir" && abs_srcdir=$_scriptdir
 test -z "$abs_builddir" && abs_builddir=$_scriptdir
 test -z "$abs_top_srcdir" && abs_top_srcdir=$_scriptdir/..
-- 
1.7.1