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Building target: bzworkbench
Invoking: GCC C++ Linker
g++ -L/usr/lib -L/usr/local/lib/ -o "bzworkbench"  ./TextUtils.o ./main.o  ./windows/ConsoleWindow.o ./windows/MainWindow.o ./windows/RenderWindow.o ./windows/View.o  ./widgets/Console.o ./widgets/QuickLabel.o ./widgets/TransformWidget.o  ./objects/arc.o ./objects/base.o ./objects/box.o ./objects/bz2object.o ./objects/cone.o ./objects/define.o ./objects/dynamicColor.o ./objects/group.o ./objects/link.o ./objects/material.o ./objects/mesh.o ./objects/meshbox.o ./objects/meshpyr.o ./objects/options.o ./objects/physics.o ./objects/pyramid.o ./objects/sphere.o ./objects/teleporter.o ./objects/tetra.o ./objects/texturematrix.o ./objects/waterLevel.o ./objects/weapon.o ./objects/world.o ./objects/zone.o  ./model/BZWParser.o ./model/Model.o ./model/SceneBuider.o  ./dialogs/Fl_Dialog.o ./dialogs/Fl_Error.o ./dialogs/MainMenu.o ./dialogs/MasterConfigurationDialog.o ./dialogs/WorldOptionsDialog.o   -lfltk -losg -losgViewer -lfltk_gl -lGL -lGLU
/usr/bin/ld: can't locate file for: -lGL
collect2: ld returned 1 exit status
make: *** [bzworkbench] Error 1