made it obvious that USE=imagemagick must be used if user wants
graphicsmagick enabled
Signed-off-by: Miroslav Šulc <fordfrog@gentoo.org>
gphoto2 - Add digital camera support
gpm - Add support for sys-libs/gpm (Console-based mouse driver)
gps - Add support for Global Positioning System
-graphicsmagick - Build and link against GraphicsMagick instead of ImageMagick (might require USE=imagemagick if optional)
+graphicsmagick - Build and link against GraphicsMagick instead of ImageMagick (requires USE=imagemagick if optional)
graphviz - Add support for the Graphviz library
gsl - Use the GNU scientific library for calculations
gsm - Add support for the gsm lossy speech compression codec