[Bug: 21.4.20] Network Drives

[Stephen J. Turnbull]

Steve Higham writes:

 > I have just reinstalled latest stable version of Xemacs. However any file
 > opened on a network drive (e.g. S:\Misc\ToDo.txt) opens as a read-only
 > buffer regardless of whether the file has the read only attribute set.

The patch described in the log below is one of the main reasons for
the release of 21.4.20, and it was intended to *fix* these access
problems.

2006-11-19  Benson Margulies  <benson at dchbk.us>

	* fileio.c: Add code to use full Win32 API to check for write
	access.  Win32 has the general design policy that you aren't
	supposed to ask this question, since security checks change
	depending on asynchronous processes.  Nonetheless, there is a way,
	by acting as if we are a server doing interpretive access
	control.

Feel free to weep.  Any ideas, Benson?