depends SDL
depends nasm
depends zlib

optional_depends %GLX "--enable-opengl" "--disable-opengl" "to enable OpenGL"
optional_depends libpng "--enable-libpng" "--disable-libpng" "to enable PNG screenshot output"
optional_depends libao "--enable-libao" "--disable-libao" "to enable an alternative audio output to SDL"
optional_depends ncurses "--enable-debugger" "--disable-debugger" "enables the zsnes debugger"
