anchor.diff:  { lib, stdenv, fetchurl, composableDerivation, autoconf, automake, flex, bison
   , mysql, libxml2, readline, zlib, curl, postgresql, gettext
  -, openssl, pkgconfig, sqlite, config, libjpeg, libpng, freetype
  +, openssl, pcre, pkgconfig, sqlite, config, libjpeg, libpng, freetype
   , libxslt, libmcrypt, bzip2, icu, openldap, cyrus_sasl, libmhash, freetds
   , uwimap, pam, gmp, apacheHttpd, libiconv, systemd }:
   
  
positive.code:         curlWrappersSupport = (!php7) && (config.php.curlWrappers or true);
          gettextSupport = config.php.gettext or true;
          pcntlSupport = config.php.pcntl or true;
          postgresqlSupport = config.php.postgresql or true;
          pdo_pgsqlSupport = config.php.pdo_pgsql or true;
          readlineSupport = config.php.readline or true;
  
negative.code: 
          pcntl = {
            configureFlags = [ "--enable-pcntl" ];
          };
  
          pcre = {
            configureFlags = ["--with-pcre-regex=${pcre.dev} PCRE_LIBDIR=${pcre}"];
            buildInputs = [ pcre ];
          };
  
          readline = {
  