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patch(1) can't patch files
- To: cygwin at sourceware dot cygnus dot com
- Subject: patch(1) can't patch files
- From: Florian Weimer <fw at deneb dot cygnus dot argh dot org>
- Date: 18 Sep 1999 18:08:53 +0200
I've received a report that GNU patch doesn't work correctly under
Cygwin-b20 if the directory for temporary files and the files to patch
aren't on the same drive (this behavior was observed under Windows 95):
patch -p1 < gnus-0.95-0.96.diff
patching file `lisp/ChangeLog'
patch: **** can't rename `C:\WINDOWS\TEMP/po001004' to
`lisp/ChangeLog' : File exists
GNU patch contains its own implementation of rename() which uses hard
links (at least on Unix) and a copy-and-delete fallback mechanism
for cross-filesystem renames. Obviously, this implementation of
rename() expects certain error values from link() &c which the cygwin
implementation doesn't provide.
(Unfortunately, I don't have working installation of cygwin-b20 myself,
which means I can't give more information here or do additional testing.)
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