我在升级到El Capitan之后安装capybara-webkit时遇到了问题。QT版本qt-4.8.7_1已经安装。运行bundle install会出现权限错误，而sudo gem install则会出现另一个错误：
bundle install：
~/P/m/web-automation (responsive ⚡=) bundle install
Fetching gem metadata from http://rubygems.org/.........
Fetching version metadata from http://rubygems.org/...
Fetching dependency metadata from http://rubygems.org/..
Resolving dependencies...
....
Installing capybara-webkit 1.7.1 with native extensions
Errno::EACCES: Permission denied @ rb_sysopen - /usr/local/lib/ruby/gems/2.2.0/gems/capybara-webkit-1.7.1/.gitignore
An error occurred while installing capybara-webkit (1.7.1), and Bundler cannot continue.
Make sure that `gem install capybara-webkit -v '1.7.1'` succeeds before bundling.
gem安装:
~/P/m/web-automation (responsive ⚡=) sudo gem install capybara-webkit -v '1.7.1'
Building native extensions. This could take a while...
ERROR: Error installing capybara-webkit:
ERROR: Failed to build gem native extension.
current directory: /usr/local/lib/ruby/gems/2.2.0/gems/capybara-webkit-1.7.1
/usr/local/opt/ruby/bin/ruby -r ./siteconf20151201-8173-19fj5gv.rb extconf.rb
cd src/ && /usr/local/bin/qmake /usr/local/lib/ruby/gems/2.2.0/gems/capybara-webkit-1.7.1/src/webkit_server.pro LIBS\ +=\ -L/usr/local/opt/libyaml/lib\ -L/usr/local/opt/openssl/lib\ -L/usr/local/opt/readline/lib -o Makefile.webkit_server
cd src/ && /Applications/Xcode.app/Contents/Developer/usr/bin/make -f Makefile.webkit_server
clang++ -pipe -stdlib=libc++ -mmacosx-version-min=10.7 -O2 -arch x86_64 -Wall -W -DQT_NO_DEBUG -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/local/Cellar/qt/4.8.7_1/mkspecs/unsupported/macx-clang-libc++ -I. -I/usr/local/Cellar/qt/4.8.7_1/lib/QtCore.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtCore.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtNetwork.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtNetwork.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtGui.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtGui.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtWebKit.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtWebKit.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/include -Ibuild -F/usr/local/Cellar/qt/4.8.7_1/lib -x c++-header -c stable.h -o build/webkit_server/c++.pch
clang -pipe -mmacosx-version-min=10.7 -O2 -arch x86_64 -Wall -W -DQT_NO_DEBUG -DQT_WEBKIT_LIB -DQT_GUI_LIB -DQT_NETWORK_LIB -DQT_CORE_LIB -DQT_SHARED -I/usr/local/Cellar/qt/4.8.7_1/mkspecs/unsupported/macx-clang-libc++ -I. -I/usr/local/Cellar/qt/4.8.7_1/lib/QtCore.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtCore.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtNetwork.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtNetwork.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtGui.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtGui.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtWebKit.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/lib/QtWebKit.framework/Versions/4/Headers -I/usr/local/Cellar/qt/4.8.7_1/include -Ibuild -F/usr/local/Cellar/qt/4.8.7_1/lib -x objective-c++-header -c stable.h -o build/webkit_server/objective-c++.pch
查看完整日志请点击此链接
。