anchor.diff:          ++ optional xslSupport libxslt
           ++ optional mcryptSupport libmcrypt'
           ++ optional bz2Support bzip2
  -        ++ optional (mssqlSupport && !stdenv.isDarwin) freetds
           ++ optional sodiumSupport libsodium
           ++ optional tidySupport html-tidy
           ++ optional argon2Support libargon2
  
positive.code:       ++ optional embedSupport "--enable-embed"
        ++ optional mhashSupport "--with-mhash"
        ++ optional curlSupport "--with-curl=${curl.dev}"
        ++ optional curlWrappersSupport "--with-curlwrappers"
        ++ optional zlibSupport "--with-zlib=${zlib.dev}"
        ++ optional libxml2Support "--with-libxml-dir=${libxml2.dev}"
        ++ optional pcntlSupport "--enable-pcntl"
  
negative.code:       ++ optional zipSupport "--enable-zip"
        ++ optional ftpSupport "--enable-ftp"
        ++ optional fpmSupport "--enable-fpm"
        ++ optional ztsSupport "--enable-maintainer-zts"
        ++ optional calendarSupport "--enable-calendar"
        ++ optional sodiumSupport "--with-sodium=${libsodium.dev}"
  