Install libpacklib-lesstif1-gfortran by entering the following commands in the terminal:
sudo apt update sudo apt install libpacklib-lesstif1-gfortran
CERNLIB data analysis suite - core GUI library
CERNLIB is a suite of data analysis tools and libraries created for use in physics experiments, but also with applications to other fields such as the biological sciences. . The packlib library includes a great deal of CERNLIB core functionality. Best-known are probably the MINUIT function minimization routines, the HBOOK histogramming routines, and KUIP (Kit for a User Interface Package). Other subsystems include CSPACK, a set of client-server routines; FFREAD, a format-free input processing system for FORTRAN; and ZEBRA, a data structure management package. . This package includes the graphical functionality of KUIP, the CERNLIB Kit for a User Interface Package. This library has been split off from packlib so that the packlib packages need not depend upon the X and Lesstif libraries. . This package was formerly named libkuipx11-1. The text-based functionality of KUIP can be found in the libpacklib1-gfortran package. . Note that in order to compile and link programs against this library, you must also install the libpacklib-lesstif1-dev package.