在Mac上安装flex（词法分析器）

Can someone tell me how I can install flex (lexical analyzer) on my Mac? I searched everywhere on google and I can't find it. I have the universal binary and I extracted it to my desktop but I have no idea where to go from here. Any help would be greatly appreciated!

有人能告诉我如何在我的Mac上安装flex（词法分析器）吗？我在谷歌的各个地方搜索，我找不到它。我有通用二进制文件，我将它提取到我的桌面，但我不知道从哪里开始。任何帮助将不胜感激！

5 个解决方案

#1

You can use macports to install flex

您可以使用macports来安装flex

#2

You can always install from source. Download the tarball from the flex site, extract it, cd to the directory where you extracted it, and run the following:

您始终可以从源安装。从flex站点下载tarball，解压缩，cd到你解压缩的目录，然后运行以下命令：

./configure
make
make install
make clean

Assuming you have make and a C compiler on your Mac, which I believe all Macs have.

假设你的Mac上有make和C编译器，我相信所有的Mac都有。

#3

Try using Homebrew (Packet manager for Mac) and use the following command :-

尝试使用Homebrew（Mac的数据包管理器）并使用以下命令： -

brew install flex

#4

Flex is shipped with the xCode Command line tools; you only got to install them via xcode > preferences > downloads > Command line tools. This also includes gcc (Clang).

Flex随xCode命令行工具一起提供;你只需要通过xcode> preferences> downloads>命令行工具安装它们。这还包括gcc（Clang）。

#5

This info can help to somebody to save time:

此信息可以帮助有人节省时间：

Just today I have try to install FLEX 2.5.39 from sources. Make - fails.

就在今天，我尝试从源代码安装FLEX 2.5.39。制造 - 失败。

After some thoughts I have decide to try older archives. 2.5.38 - fail 2.5.37 - OK

经过一番思考后，我决定尝试更旧的档案。 2.5.38 - 失败2.5.37 - 好的

It seems on now() = 2015-03-15, macport also uses 2.5.37 build.

现在似乎（）= 2015-03-15，macport也使用了2.5.37版本。

#1