KissXML/DDXMLDocument: Declaration of 'xmlKeepBlanksDefault' must be imported

更新Xcode9.3 后，项目工程里的KissXML/DDXMLDocument.m文件报错：

1、Declaration of 'xmlKeepBlanksDefault' must be imported from module 'libxml2.parser' before it is required

2、Conflicting types for 'xmlParseMemory'

DDXMLDocument

解决办法----缺啥补啥，在KissXML/DDXMLDocument.m中引入头文件 ：

    #include <libxml2/libxml/parser.h>

    编译通过！！！