anchor.diff:      checkTarget = "test";
     };
   
  -  xdebug25 = assert !isPhp72; buildPecl {
  -    name = "xdebug-2.5.0";
  -
  -    sha256 = "03c9y25a3gc3kpav0cdgmhjixcaly6974hx7wgihi0wlchgavmlb";
  -
  -    doCheck = true;
  -    checkTarget = "test";
  -  };
  -
  -  xdebug26 = assert !isPhpOlder7; buildPecl {
  -    name = "xdebug-2.6.0beta1";
  -
  -    sha256 = "0zaj821jbpaqqcbr9a64sa27my9n980pmyy9kxrvvjqq3qg6dpj9";
  +  xdebug26 = assert isPhp7; buildPecl {
  +    name = "xdebug-2.6.0";
  +
  +    sha256 = "1p6b54ypi5lq4ka3pyy2gswdf1d5vjb9y8lp9fqcp3zn7g04q9mm";
   
       doCheck = true;
       checkTarget = "test";
  
positive.code:     buildInputs = [ pkgs.spidermonkey_1_8_5 ];
    };
  
    xdebug = if isPhp72 then xdebug26 else if isPhp7 then xdebug25 else xdebug23;
  
    xdebug23 = assert !isPhp7; buildPecl {
      name = "xdebug-2.3.1";
  
negative.code:     };
    isPhpOlder55 = pkgs.lib.versionOlder php.version "5.5";
    isPhp7 = pkgs.lib.versionAtLeast php.version "7.0";
  
    apcu = if isPhp7 then apcu51 else apcu40;
  
  