build:
	g++ ./slider.cpp -std=c++11 -o slider -lsfml-graphics -lsfml-window -lsfml-system 
build_debug:
	g++ ./slider.cpp -std=c++11 -o slider -lsfml-graphics -lsfml-window -lsfml-system -D_DEBUG
build_circle:
	g++ ./circle.cpp -std=c++11 -o circle -lsfml-graphics -lsfml-window -lsfml-system