On 9/17/2020 4:27 PM, Roland Roberts wrote:
On 8/24/2020 5:43 PM, Roland Roberts wrote:
I have one machine, a company machine which makes it hard to post details,
which is running Windows 7. We run cygwin as our development environment for
Java, but Java is installed as a Windows program. The scripts that do the
builds are bash scripts that pull down updated code from svn, then run unit
tests. All of the cygwin bits work fine, but when Java is launched to run the
unit tests, it runs into problems with reading files that were created as
symlinks in cygwin. Note that this does *not* happen with cygwin 3.1.4, but
does with higher versions (up through 3.1.7).
Possibly related, the permissions on installed files is odd if I roll back
from > 3.1.4 to 3.1.4. The files that were updated with the later version
can't be deleted. The permissions on, for example, an Emacs upgraded under
3.1.6 or 3.1.7 show "Unknown User" when I downgrade just cygwin and I can't
run it. I have to upgrade cygwin, uninstall Emacs, downgrade cygwin then
reinstall.
Other users in the company have had their machines upgraded/replaced with
Windows 10 and don't seem to have this issue. Eventually, mine will be
replaced as well, but in the meantime, later versions of cygwin can't be used.
Okay, I have no idea what form of dyslexia struck me when I wrote all those
version numbers, but I've edited the above since it wasn't 1.x but 3.1.x
Starting with Cygwin 3.1.5, Cygwin changed its default method of creating
symlinks. They are now special reparse points known as "WSL symlinks" on
systems that support reparse points.
If you create such a symlink in Cygwin > 3.1.4 and then roll back to an earlier
version, Cygwin won't recognize the file type. (But Windows 10 with WSL will
recognize it.)
If you're using tools that don't work with the new style of symlink, you can use
the CYGWIN environment variable to change the way Cygwin creates symlinks.
Ken
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