Bug#1094102: giza: FTBFS: make[6]: *** [Makefile:921: test-suite.log] Error 1

[Ole Streicher]

Created #1095028 on xvfb to track this.

As a workaround, I add a loop to repeatedly run

    XW.display = XOpenDisplay (NULL);

until it was successfull.

https://bugs.debian.org/1095028