iotests: Drop readlink -f

On macOS, (out of the box) readlink does not have -f.  We do not really
need readlink here, though, it was just a replacement for realpath
(which is not available on our BSD test systems), which we needed to
make the $(dirname) into an absolute path.

Instead of using either, just use "cd; pwd" like is done for
$source_iotests.

Fixes: b1cbc33a3971b6bb005d5ac3569feae35a71de0f
       ("iotests: Allow running from different directory")
Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Reported-by: Claudio Fontana <cfontana@suse.de>
Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200914145606.94620-1-mreitz@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

diff --git a/tests/qemu-iotests/check b/tests/qemu-iotests/check
index e14a1f354dd93d97cdd4467be90b85aaf04a1513..678b6e49103a5ebd1abe488f051479510febe1dd 100755 (executable)
--- a/tests/qemu-iotests/check
+++ b/tests/qemu-iotests/check
@@ -44,7 +44,7 @@ then
         _init_error "failed to obtain source tree name from check symlink"
     fi
     source_iotests=$(cd "$source_iotests"; pwd) || _init_error "failed to enter source tree"
-    build_iotests=$(readlink -f $(dirname "$0"))
+    build_iotests=$(cd "$(dirname "$0")"; pwd)
 else
     # called from the source tree
     source_iotests=$PWD