{ lib, stdenv, fetchurl }: let srcs = { lemon = fetchurl { sha256 = "1c5pk2hz7j9hix5mpc38rwnm8dnlr2jqswf4lan6v78ccbyqzkjx"; url = "http://www.sqlite.org/src/raw/tool/lemon.c?name=680980c7935bfa1edec20c804c9e5ba4b1dd96f5"; name = "lemon.c"; }; lempar = fetchurl { sha256 = "1ba13a6yh9j2cs1aw2fh4dxqvgf399gxq1gpp4sh8q0f2w6qiw3i"; url = "http://www.sqlite.org/src/raw/tool/lempar.c?name=01ca97f87610d1dac6d8cd96ab109ab1130e76dc"; name = "lempar.c"; }; }; in stdenv.mkDerivation { pname = "lemon"; version = "1.69"; dontUnpack = true; buildPhase = '' sh -xc "$CC ${srcs.lemon} -o lemon" ''; installPhase = '' install -Dvm755 lemon $out/bin/lemon install -Dvm644 ${srcs.lempar} $out/bin/lempar.c ''; meta = with lib; { description = "An LALR(1) parser generator"; longDescription = '' The Lemon program is an LALR(1) parser generator that takes a context-free grammar and converts it into a subroutine that will parse a file using that grammar. Lemon is similar to the much more famous programs "yacc" and "bison", but is not compatible with either. ''; homepage = "http://www.hwaci.com/sw/lemon/"; license = licenses.publicDomain; platforms = platforms.unix; }; }