howard-hinnant-date: 3.0.1 -> 3.0.3

diff --git a/src/tz.cpp b/src/tz.cpp

index 68436c3..2bfe19e 100644

--- a/src/tz.cpp

+++ b/src/tz.cpp

@@ -349,7 +349,7 @@ discover_tz_dir()

     struct stat sb;

     using namespace std;

 #  ifndef __APPLE__

@@ -498,7 +498,7 @@ discover_tz_dir()

     else

         throw runtime_error("discover_tz_dir failed to find zoneinfo\n");

 #  elif !defined(__APPLE__)

-    CONSTDATA auto tz_dir_default = "/usr/share/zoneinfo";

+    CONSTDATA auto tz_dir_default = "@tzdata@/share/zoneinfo";

     CONSTDATA auto tz_dir_buildroot = "/usr/share/zoneinfo/uclibc";

stdenv.mkDerivation rec {

  pname = "howard-hinnant-date";

  version = "3.0.1";

  version = "3.0.3";

  src = fetchFromGitHub {

    owner = "HowardHinnant";

    repo = "date";

    rev = "v${version}";

    sha256 = "1qk7pgnk0bpinja28104qha6f7r1xwh5dy3gra7vjkqwl0jdwa35";

    hash = "sha256-qfrmH3NRyrDVmHRmmWzM5Zz37E7RFXJqaV1Rq2E59qs=";

  };

  patches = [

      url = "https://git.alpinelinux.org/aports/plain/community/date/538-output-date-pc-for-pkg-config.patch?id=11f6b4d4206b0648182e7b41cd57dcc9ccea0728";

      sha256 = "1ma0586jsd89jgwbmd2qlvlc8pshs1pc4zk5drgxi3qvp8ai1154";

    })

    # Fix CMake include directory path.

    # https://github.com/HowardHinnant/date/pull/753

    (fetchpatch {

      name = "fix-cmake-include-dir.patch";

      url = "https://github.com/HowardHinnant/date/commit/8061b53c489b0c8676feedcb65049b27664327b5.patch";

      hash = "sha256-weZUgu0SDad7EK7msUbVzk1zY4euI0Biafj/5jD4JV4=";

    })

    # Without this patch, this library will drop a `tzdata` directory into

    # `~/Downloads` if it cannot find `/usr/share/zoneinfo`. Make the path it

    # searches for `zoneinfo` be the one from the `tzdata` package.

      src = ./make-zoneinfo-available.diff;

      inherit tzdata;

    })

    # The reported version to cmake's find_package() is 3.0.0, but the actual

    # version is 3.0.1. This patch fixes that.

    (fetchpatch {

      name = "fix-cmake-version.patch";

      url = "https://github.com/HowardHinnant/date/commit/2e19c006e2218447ee31f864191859517603f59f.patch";

      hash = "sha256-SRAWrwv64ap3Qh3RlhwqgS0L2YsrjqVSgw6iH3KlWvk=";

    })

  ];

  # Tweaks to fix undefined variable substitutions