python-numpy
python-opencv
git
curl
libdc1394-22
libjpeg-turbo-progs
graphicsmagick
libgraphicsmagick++3
libgraphicsmagick3
libboost-python-dev
gifsicle
ffmpeg

python-numpy
python-opencv
git
curl
libdc1394-22
libjpeg-turbo-progs
graphicsmagick
libgraphicsmagick++3
libgraphicsmagick3
libboost-python-dev
gifsicle=1.88*
ffmpeg

Use newer gifsicle from backports repo
Use newer gifsicle from backports repo

Browsing mediawiki's Phabricator I found that they upgraded gifsicle to 1.88 due to some issues with older versions. https://phabricator.wikimedia.org/T151455

I noticed on apsl/thumbor image newer gifsicle is available from backports repo, but was not installed, probably due to version priorities (?), so pinning works.