Glabels is incompatible with current zint-2.7.x

[christianlupus]

The function ZBarcode_Render is removed from the zint library. As a result, the zlint library can no longer be used. The configure script detects this correctly but then none of the rich set of barcodes of zint can be used anymore.

It would be very appreciated if you could update to the current version of the zint library.

[sur5r]

This function was a gLabels-specific addition to zint. Adding support for current zint will require some work. Also, AIUI, glabels is going to be replaced by glabels-qt, so I doubt this work will happen.