tclPackages.rl_json: 0.15.7 -> 0.16

  fetchFromGitHub,

  autoreconfHook,

  tcl,

  pandoc,

}:

stdenv.mkDerivation (finalAttrs: {

  pname = "rl_json";

  version = "0.15.7";

  version = "0.16";

  src = fetchFromGitHub {

    owner = "RubyLane";

    repo = "rl_json";

    tag = finalAttrs.version;

    hash = "sha256-6Y6bq/Lm6KCFFV3RF6v4fVPEN1LO+jE2xZV50a8zyng=";

    hash = "sha256-rXr7x9Cr+gD938+NEPguvYVWH5s9bKccMobuZsb0IQY=";

    fetchSubmodules = true;

  };

  # The vendored libtommath conflicts with tclTomMath.

  # Replacing it with tclTomMath fixes the issue.

  # https://github.com/RubyLane/rl_json/issues/57

  # The switch to a vendored libtommath was done in 0.15.4 in commit

  # https://github.com/RubyLane/rl_json/commit/9294d533f4d81288acf53045666b1587cf7fbf92

  # "for proper bignum handling", but the commit message doesn't explain what's wrong

  # with tclTomMath's bignum handling and all tests pass anyway.

  postPatch = ''

    rm -r deps/libtommath

    substituteInPlace Makefile.in \

      --replace-fail 'deps: local/lib/libtommath.a' 'deps:'

    substituteInPlace configure.ac \

      --replace-fail -ltommath ""

    substituteInPlace generic/rl_jsonInt.h \

      --replace-fail '#include <tommath.h>' '#include <tclTomMath.h>'

    mkdir doc/.build

    cp doc/json.md.in doc/.build/json.md.in

  '';

  nativeBuildInputs = [

    autoreconfHook

    tcl.tclPackageHook

    pandoc

  ];

  configureFlags = [

    "--datarootdir=${placeholder "out"}/share"

  ];

  env.NIX_CFLAGS_COMPILE = "-Wno-error";

  doCheck = true;

  meta = {