:: what is please take a look at this. :: installing jpegsrc [ root:downlad ]# wget http://sourceforge.net/projects/libjpeg/files/libjpeg/6b/jpegsrc.v6b.tar.gz/download [ root:downlad ]# tar -xzf jpegsrc.v6b.tar.gz [ root:downlad ]# cd jpeg-6b/ [ root:jpeg-6b ]# ./configure --prefix=/usr/local --enable-shared --enable-static if you get some error like : checking host system type... Invalid configuration `x86_64-unknown-linux-gnu': machine `x86_64-unknown' not recognized you can copy 'config.guess' and 'config.sub' on /usr/share/libtool/config to jpeg-6b dir source thenk configure and install : [ root:jpeg-6b ]# cp /usr/share/libtool/config/config.guess . [ root:jpeg-6b ]# cp /usr/share/libtool/config/config.sub . [ root:jpeg-6b ]# ./configure --prefix=/usr/local --enable-shared --enable-static [ root:jpeg-6b ]# make && make install :: links + googlelinux + noahorg