_unlink is a version of unlink designed to operate
only on HFS files. _unlink runs faster and calls fewer
other library routines than unlink. Refer to unlink
for a full description.
_unlink is used exactly like the standard unlink
function. The argument to _unlink is interpreted as an
HFS filename, even if it appears to begin with a style prefix
or a leading // or both.
Copyright (c) 1998 SAS Institute Inc. Cary, NC, USA. All rights reserved.