Which jpeg delegate to install, and what are the installation steps in CentOS?

I am trying to install imagemagick and jpeg delegate to a CentOS machine that I do not have sudo access to. The first thing I tried was to install imagemagick by doing

./configure --prefix=[path]
make
make install

In the resulting installation jpeg delegate was missing.

DELEGATES       = bzlib mpeg fontconfig freetype lzma png ps x xml zlib

Through old forum posts I was directed to http://www.imagemagick.org/download/delegates/. None of the posts were actually mentioning which exact file to download and install. So I grabbed jpegsrc.v9a.tar.gz and openjpeg-2.0.0.tar.gz, installed them, again to custom prefix that was on my PATH and re-built imagemagick. Yet the jpeg delegate was still missing. Can I get an explanation of what exactly am I doing wrong and what should I be doing to make this work?

Answer

First, download the jpeg delegate as you have, then unpack it and go into the directory where you unpacked it and run:

./configure --prefix=$HOME/jpeg
make && make install

You can use a different directory from $HOME/jpeg but be consistent in the next step.

Now download the ImageMagick source, unpack and go into the directory where you unpacked it:

./configure --prefix=$HOME/ImageMagick --with-jpeg=yes CPPFLAGS="-I$HOME/jpeg/include" LDFLAGS="-L$HOME/jpeg/lib"
make clean
make -j4 && make install

That’s it.