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] Reproducible: Always 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 Actual Results: Data cannot be saved via webdav. Expected Results: 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.