args : with args; let localDefs = builderDefs.passthru.function { src = /* put a fetchurl here */ fetchurl { url = http://gnunet.org/libextractor/download/libextractor-0.5.18.tar.gz; sha256 = "09y869zmnr6n2953ra4y7z9m9nj23prlqa4nr4rwcb50dzdmil1k"; }; buildInputs = [ zlib]; configureFlags = []; }; in with localDefs; stdenv.mkDerivation rec { name = "libextractor"+version; builder = writeScript (name + "-builder") (textClosure localDefs [doConfigure doMakeInstall doForceShare doPropagate]); meta = { description = " Libextractor - extracts metadata from files. "; inherit src; }; }