Xcode 当我用自制软件安装Gnuplot以使用八度音阶时，我总是遇到一个错误

每当我在OS X上使用自制软件安装Gnuplot时，我都会遇到问题。现在，我能够做到：

brew install gnuplot

它是有效的。但是，之后运行Octave仍然告诉我，我的终端设置为“未知”，octaverc是否：

setenv("GNUTERM","X11")

或

我尝试使用-x11进行brew安装gnuplot

但它不起作用。事实上，这就是它告诉我的

Last 15 lines from /Users/MyUsername/Library/Logs/Homebrew/gnuplot/01.configure:
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
checking whether the C compiler works... /usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
no
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
configure: error: in `/private/tmp/gnuplot20151008-1604-naulq5/gnuplot-5.0.1':
configure: error: C compiler cannot create executables
See `config.log' for more details
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory

我完全不知道这意味着什么，也不知道如何修复它

如果你需要更多的信息，我会给你，但我不知道还能给你什么

编辑1：根据其中一条评论，my/usr/bin/sed不存在，我猜在我们使用它时，它不是一个可执行文件。我如何让这个东西存在并成为一个可执行文件？好的，我的sed目录存在，但它在/usr/local/bin/sed中，而不是/usr/bin/sed中。我该如何解决这个问题，或者让自制软件看起来与众不同

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编辑2：我运行过brew doctor，它告诉我我有一些未绑定的动态库、头文件和静态库。我不知道如何解决这个问题。

a我想你是在XQuartz终端上运行它，而不是在普通的Mac终端上运行？b如果是的话，你试过在新的终端上运行吗？我注意到有些程序某些变量在旧终端中无法更新。我尝试在两个终端中运行。两个都不起作用。您是否检查了ls-l/usr/bin/sed以确认它存在，并标记为可执行？祝你好运，它不存在。我能做些什么来修复这个问题？你可以考虑运行BREW医生。过去我已经解决了这方面的问题。

Last 15 lines from /Users/MyUsername/Library/Logs/Homebrew/gnuplot/01.configure:
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
checking whether the C compiler works... /usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
no
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
configure: error: in `/private/tmp/gnuplot20151008-1604-naulq5/gnuplot-5.0.1':
configure: error: C compiler cannot create executables
See `config.log' for more details
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: /usr/bin/sed: No such file or directory
/usr/local/Library/ENV/4.3/sed: line 7: exec: /usr/bin/sed: cannot execute: No such file or directory