由于最近的更新（10.14.2）Nokogiri gem无法安装在我的应用中。
运行bundle install时出现此错误：
./siteconf20190109-70456-1diyett.rb extconf.rb --use-system-libraries
checking if the C compiler accepts -march=core2 -mtune=haswell -mssse3 -ftree-vectorize -fPIC -fPIE
-fstack-protector-strong -O2 -pipe... yes
checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future...
no
Building nokogiri using system libraries.
Using pkg-config gem version 1.3.2
checking for libxml-2.0... yes
checking for libxslt... yes
checking for libexslt... yes
checking for xmlParseDoc() in libxml/parser.h... no
checking for xmlParseDoc() in -lxml2... no
checking for xmlParseDoc() in -llibxml2... no
-----
libxml2 is missing. Please locate mkmf.log to investigate how it is failing.
-----
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers. Check the mkmf.log file for more details. You may need configuration options.
我已经检查了Nokogiri's installation guide中的Mojave，但即使使用了此补丁，它也无法正常工作：
open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg
设置：
操作系统： OSX Mojave 10.14.2
Ruby版本： 红宝石2.4.4p296（2018-03-28修订版63013）[x86_64-darwin17]
您有解决此问题的想法吗？
预先感谢您的帮助。