SWFTools-0.9.2
gif2swf errors during compilation due to giflib is now corrected
How to install in ubuntu 16.04 LTS
sudo apt-get install build-essential checkinstall sudo apt-get install libgif-dev xpdf libfreetype6 libfreetype6-dev libjpeg62 libjpeg8 libjpeg8-dev
Download this repository to /tmp folder unzip the file ./configure make
Edit /swfs/Makefile to comment the following 2 lines (to look something like below, note # beginning of the line)
#rm -f
sudo checkinstall
Insert the name of the package (SWFTools) when prompted by checkinstall and follow the procedure as usual.