So here’s to you, imagemagick-7.1.1-15.tar.gz .
The releases directory on imagemagick.org typically contains older .tar.gz and .tar.xz files.
Upon decompression ( tar xzf ImageMagick-7.1.1-15.tar.gz ), the archive expands into a standardized Autotools build structure.
Ensure you have build-essential , libjpeg-dev , and libpng-dev installed to support common image formats.