Lay*_*son 4 ruby macos homebrew
我在 macOS Big Sur 上安装 Ruby 2.2.2 时遇到了一些麻烦。有没有人遇到过他们能够解决的类似问题？非常感谢
错误：
`Downloading openssl-1.0.2u.tar.gz...
-> https://dqw8nmjcqpjn7.cloudfront.net/ecd0c6ffb493dd06707d38b14bb4d8c2288bb7033735606569d8f90f89669d16
Installing openssl-1.0.2u...
Installed openssl-1.0.2u to /Users/findum/.rbenv/versions/2.2.2
Downloading ruby-2.2.2.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/2.2/ruby-2.2.2.tar.bz2
Installing ruby-2.2.2...
WARNING: ruby-2.2.2 is past its end of life and is now unsupported.
It no longer receives bug fixes or critical security updates.
ruby-build: using readline from homebrew
BUILD FAILED (macOS 11.1 using ruby-build 20201225)
Inspect or clean up the working tree at /var/folders/x8/g8yqvrh55gq0wds4hny1t94r0000gn/T/ruby-build.20210101111906.42540.uFRvAN
Results logged to /var/folders/x8/g8yqvrh55gq0wds4hny1t94r0000gn/T/ruby-build.20210101111906.42540.log
Last 10 log lines:
compiling ../.././ext/psych/yaml/parser.c
linking shared-object json/ext/parser.bundle
linking shared-object pathname.bundle
installing default psych libraries
linking shared-object json/ext/generator.bundle
linking shared-object bigdecimal.bundle
linking shared-object psych.bundle
linking shared-object nkf.bundle
linking shared-object date_core.bundle
make: *** [build-ext] Error 2`
sup*_*ng7 10
看起来 OP 编辑了原始消息中的错误，因此以下答案不再相关。留给子孙后代吧。
基于对 rbenv repo 的几个 Github 问题的讨论，
听起来 Apple 更改了默认值CFLAGS作为 xcode 12 的一部分，这使得一些本机扩展安装变得混乱。听起来这些问题中提出的解决方案是
CFLAGS="-Wno-error=implicit-function-declaration" rbenv install 2.2.2
该错误指出由于扩展问题而失败
The Ruby readline extension was not compiled.
The Ruby zlib extension was not compiled.
ERROR: Ruby install aborted due to missing extensions
所以我建议先尝试手动安装这些扩展，然后重试 ruby 安装。
随着酿造：
brew install readline
brew install zlib
ruby-build的 github上有一些问题也可能有所帮助：
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