在Mac上安装flex（词法分析器）
[英]Installing flex (lexical analyzer) on Mac
问题描述
Can someone tell me how I can install flex (lexical analyzer) on my Mac? 
有人能告诉我如何在我的Mac上安装flex（词法分析器）吗？ I searched everywhere on google and I can't find it. 我在谷歌的各个地方搜索，我找不到它。 I have the universal binary and I extracted it to my desktop but I have no idea where to go from here. 我有通用二进制文件，我将它解压缩到我的桌面，但我不知道从哪里开始。 Any help would be greatly appreciated! 任何帮助将不胜感激！
5 个解决方案
解决方案1
6 2016-05-20 15:05:40
尝试使用Homebrew（适用于Mac的数据包管理器）并使用以下命令： -
brew install flex
解决方案2
4 已采纳 2011-03-07 01:52:18
您可以使用macports来安装flex
解决方案3
4 2011-03-07 01:53:47
You can always install from source. 您始终可以从源安装。 Download the tarball from the flex site , extract it, cd to the directory where you extracted it, and run the following: 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。
解决方案4
2 2015-03-29 20:06:40
Flex is shipped with the xCode Command line tools; Flex随xCode命令行工具一起提供; you only got to install them via xcode > preferences > downloads > Command line tools. 你只需要通过xcode> preferences> downloads>命令行工具安装它们。 This also includes gcc (Clang). 这还包括gcc（Clang）。
解决方案5
0 2015-03-16 09:41:30
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. 就在今天，我尝试从源代码安装FLEX 2.5.39。 Make - fails. 制造 - 失败。
After some thoughts I have decide to try older archives. 经过一番思考后，我决定尝试更旧的档案。 2.5.38 - fail 2.5.37 - OK 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2.5.37版本。
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