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安裝水豚，WebKit的我已經安裝的Qt 4.8.5，其水豚，WebKit的要求，但由於某些原因，我的系統好像我仍在使用4.7.x.思考無法在OS X
我刪除了4.7.x —這是/ Developer/Applications —通過刪除/ Developer/Applications，因爲Apple的開發工具不再使用該位置，所以Qt 4.7.x是唯一的。
我重新安裝的Qt 4.8.5刪除的Qt 4.7.x後，並試圖安裝水豚，WebKit的，但沒有骰子：
$ brew reinstall qt4
==> Reinstalling qt4
==> Downloading https://downloads.sf.net/project/machomebrew/Bottles/qt-4.8.5.mavericks.bottle.
Already downloaded: /Library/Caches/Homebrew/qt-4.8.5.mavericks.bottle.4.tar.gz
==> Pouring qt-4.8.5.mavericks.bottle.4.tar.gz
==> Caveats
We agreed to the Qt opensource license for you.
If this is unacceptable you should uninstall.
.app bundles were installed to /usr/local/Cellar/qt/4.8.5 (or libexec).
Run `brew linkapps` to symlink these to /Applications.
==> Summary
/usr/local/Cellar/qt/4.8.5: 2780 files, 120M
$ gem install capybara-webkit -v '1.1.1'
Building native extensions. This could take a while...
ERROR: Error installing capybara-webkit:
ERROR: Failed to build gem native extension.
/Users/brandon/.rvm/rubies/ruby-2.0.0-p353/bin/ruby extconf.rb
cd src/ && /usr/bin/qmake /Users/brandon/.rvm/gems/ruby-2.0.0-p353/gems/capybara-webkit-1.1.1/src/webkit_server.pro -spec /usr/local/Qt4.7/mkspecs/macx-g++ -o Makefile.webkit_server
Project ERROR: At least Qt 4.8.0 is required to run capybara-webkit.
make: *** [sub-src-webkit_server-pro-qmake_all] Error 2
Command 'make qmake' failed
make "DESTDIR=" clean
cd src/ && /usr/bin/qmake /Users/brandon/.rvm/gems/ruby-2.0.0-p353/gems/capybara-webkit-1.1.1/src/webkit_server.pro -spec /usr/local/Qt4.7/mkspecs/macx-g++ -o Makefile.webkit_server
Project ERROR: At least Qt 4.8.0 is required to run capybara-webkit.
make: *** [src/Makefile.webkit_server] Error 2
make "DESTDIR="
cd src/ && /usr/bin/qmake /Users/brandon/.rvm/gems/ruby-2.0.0-p353/gems/capybara-webkit-1.1.1/src/webkit_server.pro -spec /usr/local/Qt4.7/mkspecs/macx-g++ -o Makefile.webkit_server
Project ERROR: At least Qt 4.8.0 is required to run capybara-webkit.
make: *** [src/Makefile.webkit_server] Error 2
make failed, exit code 2
Gem files will remain installed in /Users/brandon/.rvm/gems/ruby-2.0.0-p353/gems/capybara-webkit-1.1.1 for inspection.
Results logged to /Users/brandon/.rvm/gems/ruby-2.0.0-p353/extensions/x86_64-darwin-12/2.0.0-static/capybara-webkit-1.1.1/gem_make.out
如果我運行brew linkapps它創建符號鏈接* .APP文件/應用，但它似乎並沒有做任何事情，是有關太水豚，WebKit的安裝。我不知道應該怎麼掛在那裏，或者如果是那樣的問題，但其他自制軟件安裝的軟件似乎得到掛/usr/local/bin/。有沒有什麼似乎Qt在那裏，但：
$ ls /usr/local/bin/q*
/usr/local/bin/qcollectiongenerator /usr/local/bin/qmake
/usr/local/bin/qdoc3 /usr/local/bin/qmlplugindump
/usr/local/bin/qhelpgenerator /usr/local/bin/qt3to4
什麼問題？我如何解決它？