Bug#942562: libopencv-dev: missing pkg-config file, breaks build-rdeps

[Emilio Pozuelo Monfort]

Package: libopencv-dev
Version: 4.1.2+dfsg-3
Severity: serious

With the last updates, opencv has lost its pkg-config file, causing FTBFS
for rdeps that are looking for it, see e.g.:

https://buildd.debian.org/status/fetch.php?pkg=gst-plugins-bad1.0&arch=amd64&ver=1.16.1-1%2Bb2&stamp=1571349712&raw=0
https://buildd.debian.org/status/fetch.php?pkg=gmic&arch=amd64&ver=2.4.5-1%2Bb2&stamp=1571337762&raw=0
https://buildd.debian.org/status/fetch.php?pkg=freeture&arch=amd64&ver=1.3.0-1%2Bb2&stamp=1571337381&raw=0

Please install opencv.pc again.

Emilio