Thanks to AL0I for these instructions, tested on openSUSE Linux 11.3 with a default installation off the DVD.
Using the package manager install the following files including their dependencies:
autoconf automake gcc-c++ fltk-devel libcurl-devel libpng14-devel libsamplerate-devel make xorg-x11-devel libjpeg-devel
Next get the latest dl-fldigi source code from github
Unzip the source code and using the terminal/console cd into the directory. Then run the following commands: