wget http://www.lcdf.org/gifsicle/gifsicle-1.55.tar.gz
tar zxf gifsicle-1.55.tar.gz
cd gifsicle-1.55
./configure
make
make install
安装jpegtran:
wget http://jpegclub.org/droppatch.v7.tar.gz
tar zxf droppatch.v7.tar.gz
cp ./jpegtran /usr/local/bin
安装pngcrush:
wget http://downloads.sourceforge.net/project/pmt/pngcrush/1.7.0/pngcrush-1.7.0.tar.gz
tar zxf pngcrush-1.7.0.tar.gz
cd pngcrush-1.7.0
make
cp ./pngcrush /usr/local/bin