【macOS Big Sur】pyenvでpythonインストールするまでに詰まった話

開発環境

・Macbook Air Big Sur 11.1
・pyenv 1.2.26
・xcode-select version 2384
・XCode　12.4

やりたいこと

pyenvでpython3.7.3をインストールしたい

発生したこと

$ pyenv install 3.7.3

だめだった・・・

BUILD FAILED (OS X 11.0.1 using python-build 20180424)

Inspect or clean up the working tree at /tmp/python-build.20201120091233.71993
Results logged to /tmp/python-build.20201120091233.71993.log

Last 10 log lines:
./Modules/posixmodule.c:8210:15: error: implicit declaration of function 'sendfile' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
ret = sendfile(in, out, offset, &sbytes, &sf, flags);
^
./Modules/posixmodule.c:10432:5: warning: code will never be executed [-Wunreachable-code]
Py_FatalError("abort() called from Python code didn't abort!");
^~~~~~~~~~~~~
1 warning and 1 error generated.
make: *** [Modules/posixmodule.o] Error 1
make: *** Waiting for unfinished jobs....
1 warning generated`

解決手順

zlib bzip2を再インストール

$ brew reinstall zlib bzip2

zshrcファイルにパスを追加

$ vi ~/.zshrc

ここから↓
export PATH="$HOME/.pyenv/bin:$PATH"
export PATH="/usr/local/bin:$PATH"

eval "$(pyenv init -)"
eval "$(pyenv virtualenv-init -)"
export LDFLAGS="-L/usr/local/opt/zlib/lib -L/usr/local/opt/bzip2/lib"
export CPPFLAGS="-I/usr/local/opt/zlib/include -I/usr/local/opt/bzip2/include"
ここまで書く↑

インストールしたいバージョンを自由にいれて、叩く

$ CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.7.3 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)

別のエラー・・・・・・

ERROR: The Python ssl extension was not compiled. Missing the OpenSSL lib?

openSSLをインストール

$ brew install openssl

zshrcファイルにパスを追加

$ vi ~/.zshrc

ここから↓
export PATH="/opt/homebrew/opt/openssl@1.1/bin:$PATH"
export LDFLAGS="-L/opt/homebrew/opt/openssl@1.1/lib"
export CPPFLAGS="-I/opt/homebrew/opt/openssl@1.1/include"
export PKG_CONFIG_PATH="/opt/homebrew/opt/openssl@1.1/lib/pkgconfig"
ここまで書く↑

もう一度チャレンジ・・・！

$ CFLAGS="-I$(brew --prefix openssl)/include -I$(brew --prefix bzip2)/include -I$(brew --prefix readline)/include -I$(xcrun --show-sdk-path)/usr/include" LDFLAGS="-L$(brew --prefix openssl)/lib -L$(brew --prefix readline)/lib -L$(brew --prefix zlib)/lib -L$(brew --prefix bzip2)/lib" pyenv install --patch 3.7.3 < <(curl -sSL https://github.com/python/cpython/commit/8ea6353.patch\?full_index\=1)

いけた！

Installed Python-3.7.3 to /Users/ワシの名前/.pyenv/versions/3.7.3

 $ pyenv versions
    system
    * 3.7.3 (set by /Users/tomomitakei/.pyenv/version)

参考文献