anchor.diff:  { stdenv
  +, fetchTritonPatch
   , fetchurl
   , gettext
   , lib
   
   , c-ares
  +, gpgme
   , libidn2
  +, libmetalink
   , libpsl
   , libunistring
   , lzip
  
positive.code:   # even though it uses libidn2
    NIX_LDFLAGS = "-rpath ${libidn2}/lib";
  
    postPatch = ''
      for i in "doc/texi2pod.pl" "util/rmold.pl" ; do
        sed -i "$i" \
  
negative.code: 
    buildInputs = [
      c-ares
      gpgme
      libidn2
      libmetalink
      libpsl
      libunistring
      lzip
  