Lua for Mac环境搭建
1⃣️在Mac上安装Lua的运行环境再简单不过了，如果你的Mac Terminal上安装了Homebrew的话，只需要键入`brew install lua`即可。
longsl-mac:~ longsl$ brew install lua
Updating Homebrew...
==> Auto-updated Homebrew!
Updated 1 tap (homebrew/core).
==> Updated Formulae
acpica erlang kubeprod rust
aliyun-cli exploitdb libgweather sonar-scanner
ask-cli freetype libpqxx sonarqube
azure-cli glooctl micronaut terrahub
babel gmsh opa tokei
bzip2 grpcurl paket ucloud
cargo-completion gxml phpunit xsimd
clojure hadolint podofo ykpers
cointop hamlib postgresql zurl
convox helmfile proguard
django-completion jboss-forge pushpin
==> Downloading https://homebrew.bintray.com/bottles/lua-5.3.5_1.mojave.bottle.t
######################################################################## 100.0%
==> Pouring lua-5.3.5_1.mojave.bottle.tar.gz
==> Caveats
You may also want luarocks:
brew install luarocks
==> Summary
???? /usr/local/Cellar/lua/5.3.5_1: 28 files, 274.5KB
longsl-mac:~ longsl$ lua
Lua 5.3.5 Copyright (C) 1994-2018 Lua.org, PUC-Rio
> math.pi / 4
0.78539816339745
2⃣️假如你的Mac上没有安装上面提到的Homebrew软件，那也没关系，直接编译lua源代码库就可以了。
Take Lua 5.2 as example:
- Open your Terminal.app
- wget http://www.lua.org/work/lua-5.3.0-work3.tar.gz
- tar xvzf lua-5.3.0-work3.tar.gz
- cd lua-5.3.0-work3/src
- make macosx(I believe you have Xcode installed)
After that, you can see 'lua' binary under current dir.
sudo cp lua /usr/bin/lua