args : with args; let localDefs = builderDefs.passthru.function { src = /* put a fetchurl here */ fetchurl { url = http://prdownloads.sourceforge.net/jocr/gocr-0.44.tar.gz; sha256 = "0kvb7cbk6z5n4g0hhbwpdk2f3819yfamwsmkwanj99yhni6p5mr0"; }; buildInputs = []; configureFlags = []; }; in with localDefs; stdenv.mkDerivation rec { name = "gocr"; builder = writeScript (name + "-builder") (textClosure localDefs [doConfigure doMakeInstall doForceShare doPropagate]); meta = { description = " GPL Optical Character Recognition "; inherit src; }; }