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我正在尝试从 ruby​​ 1.9.3 升级到 ruby​​ 2.0.0。我不能这样做，因为我收到一个错误，说需要 lib 工具。关于获取 libtool 的建议将我引向 Homebrew。我以前有它，但删除了它，因为它不允许我安装任何东西。我不断收到一长串错误，但没有关于如何解决它们的建议。我当前的 brew doctor 错误列表是：

Warning: "config" scripts exist outside your system or Homebrew directories.
`./configure` scripts often look for *-config scripts to determine if
software packages are installed, and what additional flags to use when
compiling and linking.

Having additional scripts in your path can confuse software installed via
Homebrew if the config script overrides a system or Homebrew provided
script of the same name. We found the following "config" scripts:

    /opt/sm/pkg/active/bin/curl-config
    /opt/sm/pkg/active/bin/ncurses5-config
    /opt/sm/pkg/active/bin/ncursesw5-config
    /opt/sm/pkg/active/bin/pkg-config
    /opt/sm/pkg/active/bin/xml2-config
    /opt/sm/pkg/active/bin/xslt-config

Warning: /usr/bin occurs before /usr/local/bin
This means that system-provided programs will be used instead of those
provided by Homebrew. The following tools exist at both paths:

    git
    git-cvsserver
    git-receive-pack
    git-shell
    git-upload-archive
    git-upload-pack

Consider setting your PATH so that /usr/local/bin
occurs before /usr/bin. Here is a one-liner:
    echo export PATH="/usr/local/bin:$PATH" >> ~/.bash_profile

Warning: You have a non-Homebrew 'pkg-config' in your PATH:
  /opt/sm/pkg/active/bin/pkg-config

`./configure` may have problems finding brew-installed packages using
this other pkg-config.

我尝试按照建议运行 echo export PATH，但此错误不断出现。至于其他每个，我不知道如何解决它们。这真让我抓狂！提前感谢您提供的任何帮助。

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1 回答 1

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您的系统 /etc/paths 中有一个文件，在我的系统中它看起来像这样：

edgarss-mac-pro:~ ejekabsons$ cat /etc/paths
/usr/local/bin
/usr/bin
/bin
/usr/sbin
/sbin

如您所见，我将 /usr/local/bin 放在更高的位置，以便该文件夹中的可执行文件的优先级高于 /usr/bin。

于 2013-10-13T09:38:33.490 回答