Use the 'present' field to properly check that the XC-MISC extension is available in xcb_generate_id (!8) · Merge requests · xorg / lib / libxcb · GitLab

The source project of this merge request has been removed.

Merged Eduardo requested to merge (removed):generate_id-fix into master Mar 02, 2020

Also document the returned value when xcb_generate_id fails.