pkgs/development/libraries/c-ares/default.nix


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{ lib, stdenv, fetchurl, writeTextDir
, fetchpatch
, withCMake ? true, cmake
}:

# Note: this package is used for bootstrapping fetchurl, and thus
# cannot use fetchpatch! All mutable patches (generated by GitHub or
# cgit) that are needed here should be included directly in Nixpkgs as
# files.

stdenv.mkDerivation rec {
  pname = "c-ares";
  version = "1.18.1";
  outputs = [ "out" "dev" ];

  src = fetchurl {
    url = "https://c-ares.haxx.se/download/${pname}-${version}.tar.gz";
    sha256 = "sha256-Gn1SqKhKn7/7G+kTPA9uFyF9kepab6Yfa0cpzaeOu88=";
  };

  # c-ares is used for fetchpatch, so avoid using it for c-aresMinimal
  patches = lib.optionals withCMake [
    # fix .pc paths created by cmake build
    (fetchpatch {
      url = "https://github.com/jonringer/c-ares/commit/9806a8a2f999a8a3efa3c893f2854dce6919d5bb.patch";
      sha256 = "sha256-nh/ZKdan2/FTrouApRQA7O8KGZrLEUuWhxGOktiiGwU=";
    })
  ];

  nativeBuildInputs = lib.optionals withCMake [ cmake ];

  enableParallelBuilding = true;

  meta = with lib; {
    description = "A C library for asynchronous DNS requests";
    homepage = "https://c-ares.haxx.se";
    license = licenses.mit;
    platforms = platforms.all;
  };
}