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:

 autoreconf -fi 

./configure --disable-flarq 

make

src/dl-fldigi --hab