anchor.diff:    buildInputs = [
       cyrus-sasl
       db
  +    icu
       openssl
     ];
   
  
positive.code: 
  , cyrus-sasl
  , db
  , openssl
  }:
  
  
negative.code: 
    configureFlags = [
      "--enable-overlays"
      "--with-pic"
      "--with-tls"
      "--with-cyrus-sasl"
  