sys_get_temp_dir() returns a Windows-style path (\\ instead of /) on
Windows. This is why a Windows specific test is required.
Skipping req60524.phpt on Windows. Adding -win32 fork for use only on
Windows.
Fixes test bug #64396.
Added a new configuration directive which allows it to change the
temporary directory, the default behavior is unchanged.
This is a useful option if you use all/some hosts inside of one .ini file
with sections and want to change the temp dir per user (maybe it's not
allowed to write outside the users home directory). Since the TMPDIR
variable affects the whole php that way can not be used for this scenario.
(see https://bugs.php.net/bug.php?id=60524)
