{ stdenv, fetchurl, xproto, libXt, libX11, gifview ? false, static ? false }: with stdenv.lib; stdenv.mkDerivation { name = "gifsicle-1.86"; src = fetchurl { url = http://www.lcdf.org/gifsicle/gifsicle-1.86.tar.gz; sha256 = "153knkff04wh1szbmqklyq371m9whib007j0lq0dwh4jc5g6s15h"; }; buildInputs = optional gifview [ xproto libXt libX11 ]; LDFLAGS = optional static "-static"; meta = { description = "Command-line tool for creating, editing, and getting information about GIF images and animations"; homepage = http://www.lcdf.org/gifsicle/; license = stdenv.lib.licenses.gpl2; maintainers = with stdenv.lib.maintainers; [ fuuzetsu ]; }; }