Linux-Installation/Ubuntu-Installation.md

@@ -49,6 +49,8 @@ apt-get install -y libpcre3-dev xlibmesa-glu-dev \
                    libglew1.5-dev libftgl-dev libfftw3-dev libcfitsio-dev \
                    graphviz-dev libxml2-dev libgsl0-dev
 
+apt install -y libmotif-dev
+
 apt install -y libfreetype6-dev
 
 ```