lxml install on OS X error: "libxml/xmlversion.h"

[jacklong]

error: 'libxml/xmlversion.h' file not found #include "libxml/xmlversion.h"

brew install libxml2 libxslt

STATIC_DEPS=true sudo pip install lxml

http://lxml.de/installation.html#macos-x

[Melodic]

xcode-select --install

升级一下命令行先？

[chinvo]

$ brew doctor

[autosquid]

lxm 自身安装包的问题。

workaround 是把 Libxml2 的路径手工指定。

```
CPATH=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/libxml2 CFLAGS=-Qunused-arguments CPPFLAGS=-Qunused-arguments pip install lxml
```