Internal Program Version: xcb-util-errors  1.0.1

The XCB util modules provide a number of libraries which sit on top
of libxcb, the core X protocol library, and some of the extension
libraries.

Included in this package is:

- errors: port of utility library that gives human readable names to error
  codes and event codes and also to major and minor numbers

http://xcb.freedesktop.org