args: with args; stdenv.mkDerivation { name = "byacc-1.9"; src = fetchurl { url = http://www.isc.org/sources/devel/tools/byacc-1.9.tar.gz; sha256 = "d61a15ac4ac007c188d0c0e99365f016f8d327755f43032b58e400754846f736"; }; preConfigure = [ ''mkdir -p $out/bin sed -i "s@^DEST.*\$@DEST = $out/bin/yacc@" Makefile '' ]; meta = { description = "Berkeley YACC"; homepage = http://dickey.his.com/byacc/byacc.html; license = "public domain"; }; }