anchor.diff:      gdb man
     ];
   
  -  installTargets = "install install-man";
  +  installTargets = [ "install" "install-man" ];
   
     dontGzipMan = true; # already compressed
   
  
positive.code: with stdenv.lib;
  
  stdenv.mkDerivation rec {
    version = "0.28.3";
    name = "notmuch-${version}";
  
    passthru = {
  
negative.code: 
    src = fetchurl {
      url = "https://notmuchmail.org/releases/${name}.tar.gz";
      sha256 = "1jjnhs4xs4gksvg0a9qn68rxrj41im5bh58snka2pkj20nxwmcds";
    };
  
    nativeBuildInputs = [ pkgconfig ];
  