https://debian.pkgs.org/8/debian-main-amd64/libgif4_4.1.6-11+deb8u1_amd64.deb.html
http://ftp.br.debian.org/debian/pool/main/g/giflib/libgif4_4.1.6-11+deb8u1_amd64.deb
sudo dpkg -i libgif4_4.1.6-11+deb8u1_amd64.deb
https://ubuntu.pkgs.org/14.04/ubuntu-updates-main-amd64/libfontforge1_20120731.b-5ubuntu0.1_amd64.deb.html
http://archive.ubuntu.com/ubuntu/pool/main/f/fontforge/libfontforge1_20120731.b-5ubuntu0.1_amd64.deb
sudo dpkg -i libfontforge1_20120731.b-5ubuntu0.1_amd64.deb
chieuvh@CPU10777:~/Downloads$ sudo dpkg -i libgif4_4.1.6-11+deb8u1_amd64.deb
Selecting previously unselected package libgif4:amd64.
(Reading database ... 185021 files and directories currently installed.)
Preparing to unpack libgif4_4.1.6-11+deb8u1_amd64.deb ...
Unpacking libgif4:amd64 (4.1.6-11+deb8u1) ...
Setting up libgif4:amd64 (4.1.6-11+deb8u1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...
chieuvh@CPU10777:~/Downloads$ sudo dpkg -i libfontforge1_20120731.b-5ubuntu0.1_amd64.deb
dpkg: warning: downgrading libfontforge1 from 20170731-0ubuntu1~xenial to 20120731.b-5ubuntu0.1
(Reading database ... 185031 files and directories currently installed.)
Preparing to unpack libfontforge1_20120731.b-5ubuntu0.1_amd64.deb ...
Unpacking libfontforge1 (20120731.b-5ubuntu0.1) over (20170731-0ubuntu1~xenial) ...
Setting up libfontforge1 (20120731.b-5ubuntu0.1) ...
Processing triggers for libc-bin (2.23-0ubuntu10) ...
chieuvh@CPU10777:~/Downloads$ ll /usr/lib/libfontforge.so.1
lrwxrwxrwx 1 root root 21 Th08 30 2017 /usr/lib/libfontforge.so.1 -> libfontforge.so.1.0.0
