Bug#890255: libkkc: Fails to build: unknown type name ‘KkcState’

[Jeremy Bicha]

Control: reassign -1 valac 0.38.7-1

I can't reproduce this build failure with vala 0.39.91. I am uploading
vala 0.39.91 to experimental now and we'll push it to unstable soon.

Thanks,
Jeremy Bicha