anchor.diff: -{ fetchurl, stdenv, bash, emacs, fixDarwinDylibNames
  -, gdb, glib, gmime, gnupg
  -, pkgconfig, talloc, xapian
  -, sphinx, python
  +{ fetchurl, stdenv, fixDarwinDylibNames, gdb
  +, pkgconfig, gnupg
  +, xapian, gmime, talloc, zlib
  +, doxygen, perl
  +, pythonPackages
  +, bash-completion
  +, emacs
  +, ruby
  +, which, dtach, openssl, bash
   }:
   
   stdenv.mkDerivation rec {
  -  version = "0.22";
  +  version = "0.23.2";
     name = "notmuch-${version}";
   
     passthru = {
  
positive.code:     done
    '';
  
    postInstall = ''
      make install-man
    '';
  
    preFixup = if stdenv.isDarwin then
      ''
        set -e
  
        die() {
          >&2 echo "$@"
          exit 1
        }
  
        prg="$out/bin/notmuch"
        lib="$(find "$out/lib" -name 'libnotmuch.?.dylib')"
  
        [[ -s "$prg" ]] || die "couldn't find notmuch binary"
        [[ -s "$lib" ]] || die "couldn't find libnotmuch"
  
        badname="$(otool -L "$prg" | awk '$1 ~ /libtalloc/ { print $1 }')"
        goodname="$(find "${talloc}/lib" -name 'libtalloc.?.?.?.dylib')"
  
        [[ -n "$badname" ]]  || die "couldn't find libtalloc reference in binary"
        [[ -n "$goodname" ]] || die "couldn't find libtalloc in nix store"
  
        echo "fixing libtalloc link in $lib"
        install_name_tool -change "$badname" "$goodname" "$lib"
  
        echo "fixing libtalloc link in $prg"
        install_name_tool -change "$badname" "$goodname" "$prg"
      ''
    else
      "";
  
    # XXX: emacs tests broken
    doCheck = false;
    checkTarget = "test";
  
    meta = {
      description = "Mail indexer";
  
negative.code: 
    src = fetchurl {
      url = "http://notmuchmail.org/releases/${name}.tar.gz";
      sha256 = "1g4p5hsrqqbqk6s2w756als60wppvjgpyq104smy3w9vshl7bzgd";
    };
  
    buildInputs = [
      pkgconfig gnupg # undefined dependencies
      xapian gmime talloc zlib  # dependencies described in INSTALL
      doxygen perl  # (optional) api docs
      pythonPackages.sphinx pythonPackages.python  # (optional) documentation -> doc/INSTALL
      bash-completion  # (optional) dependency to install bash completion
      emacs  # (optional) to byte compile emacs code
      ruby  # (optional) ruby bindings
      which dtach openssl bash  # test dependencies
      ]
      ++ stdenv.lib.optional stdenv.isDarwin fixDarwinDylibNames
      ++ stdenv.lib.optional (!stdenv.isDarwin) gdb;
  
    doCheck = true;
    checkTarget = "test";
  
    patchPhase = ''
      # XXX: disabling few tests since i have no idea how to make them pass for now
      rm -f test/T010-help-test.sh \
            test/T350-crypto.sh \
            test/T355-smime.sh
  
      find test -type f -exec \
        sed -i \
          -e "1s|#!/usr/bin/env bash|#!${bash}/bin/bash|" \
          -e "s|gpg |${gnupg}/bin/gpg2 |" \
          -e "s| gpg| ${gnupg}/bin/gpg2|" \
          -e "s|gpgsm |${gnupg}/bin/gpgsm |" \
          -e "s| gpgsm| ${gnupg}/bin/gpgsm|" \
          -e "s|crypto.gpg_path=gpg|crypto.gpg_path=${gnupg}/bin/gpg2|" \
          "{}" ";"
  
      for src in \
  