似乎您没有安装xampp开发人员软件包"，而这是构建其他php扩展所必需的.您可以从以下位置下载开发人员软件包":

It seems, that you did not install the xampp "Developer Package", required to build additional php extension. You can download the "Developer Package" from:

http://www.apachefriends.org/en/xampp-macosx.html#849