Packages with the fltk use flag

Global definition: Add support for the Fast Light Toolkit gui interface.

app-crypt / pinentry : Simple passphrase entry dialogs which utilize the Assuan protocol

app-text / htmldoc : Convert HTML pages into a PDF document

dev-games / openscenegraph : Open source high performance 3D graphics toolkit

dev-python / matplotlib : Pure python plotting library with matlab like syntax

games-util / glbsp : A node builder specially designed for OpenGL ports of the DOOM game engine

media-libs / oyranos : Colour management system allowing to share settings across apps and services

media-sound / alsa-tools : Advanced Linux Sound Architecture tools

media-sound / csound : Sound design and signal processing system for composition and performance

media-sound / zynaddsubfx : Software synthesizer capable of making a countless number of instruments

sci-libs / mathgl : Math Graphics Library

sci-mathematics / pari : Computer-aided number theory C library and tools