macos 如何将 osx 中的 GCC 从 xcode 移动到 /usr/bin
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How to move GCC in osx from xcode to /usr/bin
提问by kjones1876
I have the gcc compiler in "/Developer/usr/bin/gcc" but when i type in gcc into terminal it says can not be found, i assume this is because its not in the "/usr/bin" dir. So can i a) move gcc from the first dir to the second, or set some kind of shortcut pointing gcc to "/Developer/usr/bin/gcc"
我在“/Developer/usr/bin/gcc”中有 gcc 编译器，但是当我在终端中输入 gcc 时，它说找不到，我认为这是因为它不在“/usr/bin”目录中。所以可以 ia) 将 gcc 从第一个目录移动到第二个目录，或者设置某种快捷方式将 gcc 指向“/Developer/usr/bin/gcc”
回答by esco_
The tip thewoolleyman linked to worked for me! I have installed Xcode 4.3.3 via the App Store. I did not have to install Xcode "again", seems Apple solved that. What I had to do are the following easy steps:
thewoolleyman 链接的小费对我来说有效！我已经通过 App Store 安装了 Xcode 4.3.3。我不必“再次”安装 Xcode，似乎 Apple 解决了这个问题。我必须做的是以下简单步骤：
- Open Xcode
- Go To Preferences > Downloads
- Install the Command Line Tools
- 打开 Xcode
- 转到首选项 > 下载
- 安装命令行工具
Thanks to Guy and his post https://stackoverflow.com/a/9377095/1451903
回答by Tarka
Two choices:
两种选择：
- Edit your
~/.bashrcor~/.bash_profile(or equivalent system files) and add/Developer/usr/bin/gccto$PATH:export PATH="$PATH:/Developer/usr/bin/" - Create a link (symlink in this example) in your
/usr/bindirectory pointing to the real file:ln -s /Developer/usr/bin/gcc /usr/bin/gcc
- 编辑您的
~/.bashrc或~/.bash_profile（或等效的系统文件）并添加/Developer/usr/bin/gcc到$PATH：export PATH="$PATH:/Developer/usr/bin/" - 在您的
/usr/bin目录中创建一个指向真实文件的链接（在本例中为符号链接）：ln -s /Developer/usr/bin/gcc /usr/bin/gcc
Note: in XCode 4.5 on MacOS 10.8 the path is now:/Applications/Xcode.app/Contents/Developer/usr/bin
注意：在 MacOS 10.8 上的 XCode 4.5 中，路径现在是：/Applications/Xcode.app/Contents/Developer/usr/bin
回答by Ignacio Vazquez-Abrams
Use ln -sto create a symlink in /usr/bin, or add /Developer/usr/binto $PATH.
用于ln -s在 中创建符号链接/usr/bin，或添加/Developer/usr/bin到$PATH.
回答by Potatoswatter
You can, in theory, hardlink it to the proper place.
理论上，您可以将其硬链接到适当的位置。
The official way to do this is to install the optional "command-line tools" with the XCode installer. This wastes several hundred megabytes as it installs a new copy of the same compiler.
执行此操作的官方方法是使用 XCode 安装程序安装可选的“命令行工具”。这会浪费数百兆字节，因为它安装了相同编译器的新副本。
I wrote a shell script once to compare the installation trees of the "XCode" installation and the "command-line" installation and hardlink together all the files that were identical. It worked perfectly but the next upgrade undid it.
我曾经写过一个 shell 脚本来比较“XCode”安装和“命令行”安装的安装树，并将所有相同的文件硬链接在一起。它运行良好，但下一次升级取消了它。
Another alternative is to download the GCC source from their CVS (not much bigger than downloading the massive XCode installer), and build it into usr/bin/yourself. Then you have the latest and greatest (or your choice of many newer and better versions) to play with.
另一种选择是从他们的 CVS 下载 GCC 源代码（比下载大量的 XCode 安装程序大不了多少），然后将其构建到usr/bin/自己中。然后您就可以使用最新最好的（或您选择的许多更新更好的版本）。
回答by thewoolleyman
If you have "installed" Xcode from the App Store, check out this thread:
如果您已从 App Store“安装”Xcode，请查看此主题：
Mac OS X Lion Xcode problems using RVM
使用 RVM 的 Mac OS X Lion Xcode 问题
Apparently, "installing" Xcode from the app store doesn't actually install it, you must manually run the installer (search for "Install Xcode" in spotlight).
显然，从应用商店“安装”Xcode 并没有真正安装它，您必须手动运行安装程序（在聚光灯下搜索“安装 Xcode”）。
