Thread: pgsql: Make unlink() work for junction points on Windows.

Make unlink() work for junction points on Windows.

To support harmonization of Windows and Unix code, teach our unlink()
wrapper that junction points need to be unlinked with rmdir() on
Windows.

Tested-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/CA%2BhUKGLfOOeyZpm5ByVcAt7x5Pn-%3DxGRNCvgiUPVVzjFLtnY0w%40mail.gmail.com
(cherry picked from commit f357233c9db8be2a015163da8e1ab0630f444340)

Author: Thomas Munro <tmunro@postgresql.org>
Author: Alexandra Wang <alexandra.wang.oss@gmail.com>

Branch
------
REL_14_STABLE

Details
-------
https://git.postgresql.org/pg/commitdiff/02a4ec478df8a4724b84d76f84e49248da204f95
Author: Thomas Munro <tmunro@postgresql.org>

Modified Files
--------------
src/port/dirmod.c | 28 +++++++++++++++++++++++++++-
1 file changed, 27 insertions(+), 1 deletion(-)