omicron nix shell environment

shell.nix

scope@{ pkgs ? import <nixpkgs> { } }:

with pkgs; mkShell.override { stdenv = clangStdenv; } {
  name = "buildomat";
  buildInputs =
    [
      stdenv
      cmake
      rustup
      pkg-config
      openssl
      libxml2
      postgresql
      xmlsec
      sqlite
      libclang
      (glibcLocales.override { locales = [ "en_US.UTF-8" ]; })
    ] ++ lib.optional stdenv.isDarwin [ Security libiconv ];
  DEP_PQ_LIBDIRS = " ${postgresql.lib}/lib";
  LIBCLANG_PATH = "${libclang.lib}/lib";
  LOCALE_ARCHIVE = "${glibcLocales}/lib/locale/locale-archive";
  LC_ALL = "en_US.UTF-8";
  OPENSSL_DIR = "${openssl.dev}";
  OPENSSL_LIB_DIR = "${openssl.out}/lib";
  CARGO_TERM_COLOR = "always";
  RUST_BACKTRACE = "full";
}