A recent update of dev-libs/apr-util broke Apache webdav. Apache log:
[Thu Jul 08 08:04:13.758193 2021] [dav:error] [pid 1686] [client xx.xx.xx.xx:35104] The locks could not be queried for verification against a possible "If:" header. [500, #0]
[Thu Jul 08 08:04:13.758222 2021] [dav:error] [pid 1686] [client xx.xx.xx.xx:35104] Could not open the lock database. [500, #400]
[Thu Jul 08 08:04:13.758232 2021] [dav:error] [pid 1686] (20019)DSO load failed: [client xx.xx.xx.x:35104] Could not open property database. [500, #1]
Steps to Reproduce:
1. Try to save data via webdav (in my case with Android app Keepass2Android)
2. App cannot save the data
3. Apache writes error log
Data cannot be saved via webdav.
Data should be able to save via webdav.
After adding the USE flag berkdb for dev-libs/apr-util, Apache is able to save webdav data again.