install.sh 中编译 YCM 需要去掉 --system-libclang

[johnwatsondev]

Full Installation Guide 中有明确提示：

We STRONGLY recommend AGAINST use of the system libclang instead of the upstream compiled binaries. Random things may break. Save yourself the hassle and use the upstream pre-built libclang.

不然在 macOS 下会提示错误：Undefined symbols for architecture x86_64

[LalZzy]

 我在mac上安装时遇到了这个问题。
按照你的建议我修改了install.sh的源代码，成功安装上了。
又遇到了，这个ycm的问题。

ycm-core/YouCompleteMe#3165

按照提示操作后，最后终于可以正常打开vim了。

[TaoRuan]

报错 无法使用

Vim: Caught deadly signal SEGV
Error detected while processing function <SNR>143_PollServerReady[7]..<SNR>143_Pyeval:Vim: Finished.

line    4:
Exception MemoryError: MemoryError() in <module 'threading' from '/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.pyc'> ignored
[1]    59369 segmentation fault  vim