Ubuntu

Binary package “libfltk1.1” in ubuntu bionic

  1. Bionic (18.04)
  2. libfltk1.1

Fast Light Toolkit - shared libraries

 This package contains the files necessary for running programs
 dynamically linked with FLTK.
 .
 The Fast Light Toolkit (FLTK) is a cross-platform graphical user interface
 toolkit originally based on libForms.

Source package