Otherwise if a package fail to load the routine is stuck in a
continuous loop trying to load the package, resulting in a loader
deadlock.

Restore the behaviour before commit 021547ca.
Signed-off-by: Lorenzo Ferrillo <lorenzofersteam@live.it>

Wine-Bug: https://bugs.winehq.org//show_bug.cgi?id=55333

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=54756

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55402

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55287

When the path contains a mountpoint on Unix or a junction point to
another drive on Windows, cmd.exe should show free space for the
path instead of the root of the drive.

Found with Coccinelle.

Several items here were encoded conditionally even though they aren't marked
as optional in the spec.
Signed-off-by: Torge Matthies <openglfreak@googlemail.com>