find / -name gcc
不透露它.不过,Xcode可以编译C代码.所以我的系统上必须有一个编译器！
它在哪里？
Command-Line Tools Are Optional: The command-line tools are not bundled with Xcode 4.3 by default. Instead,they can be installed optionally using the Components tab of the Downloads preferences panel as shown in Figure 3.
因此,您必须转到“下载首选项”面板并下载它们.
