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`CYGWIN=winsymlinks:nativestrict`, `ln -s target link` fails if target doesn't exist
- From: Gene Pavlovsky <gene dot pavlovsky at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 29 Apr 2016 01:13:05 +0300
- Subject: `CYGWIN=winsymlinks:nativestrict`, `ln -s target link` fails if target doesn't exist
- Authentication-results: sourceware.org; auth=none
First post on this mailing list, my name is Gene, I'm from Russia,
long-time Linux user, but had to use Windows as desktop for the last 8
years. Cygwin really helps me to keep my sanity! Thanks :)
I have an issue to report:
Introduction: On a UNIX system, `ln -s target link` creates a link
regardless of target's existence.
This is used in some scripts, e.g. Gentoo's `run-crons` (which I also
use on Cygwin) uses a symlink pointing to the running process PID as
Issue: if `CYGWIN=winsymlinks:nativestrict` env var is set, running
`ln -s target link` completely fails (even though running `mklink link
target` in `cmd.exe` succeeds, same as `ln -s` does on UNIX). If
`CYGWIN=winsymlinks:native`, a non-native link is created.
So, `nativestrict` might break some (admittedly unorthodox) scripts.
With `native` these script work, but still a native link would be
preferrable and it is possible to create, but a non-native link is
Bottom line, I think the native symlink creation code should be
checked and a possibility should be added to create links to
non-existent targets, rather than the current behavior of failing.
Problem reports: http://cygwin.com/problems.html
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