Install old ruby version on M1

old ruby on m1.sh

# Rbenv thread for old versions after xcode 12+
# https://github.com/rbenv/ruby-build/issues/1489
# PR for openssl 1.0 to support M1
# https://github.com/rbenv/homebrew-tap/pull/2

curl https://raw.githubusercontent.com/rbenv/homebrew-tap/e472b7861b49cc082d1db0f66f265368da107589/Formula/openssl%401.0.rb -o ./openssl@1.0.rb
brew install openssl@1.0.rb
brew --prefix openssl@1.0
brew --prefix readline

# Worked
LDFLAGS="" CFLAGS="-Wno-error=implicit-function-declaration" RUBY_CONFIGURE_OPTS="--with-openssl-dir=/opt/homebrew/opt/openssl@1.0" asdf install ruby 2.3.8

## UPDATE

# Things changed since, basically the following update is for Mac Sonoma 14 something
# rbenv is our only savior

brew install zlib readline libyaml libffi ruby-build rbenv
export RUBY_CONFIGURE_OPTS="--with-zlib-dir=$(brew --prefix zlib) --with-openssl-dir=$(brew --prefix openssl@1.1) --with-readline-dir=$(brew --prefix readline) --with-libyaml-dir=$(brew --prefix libyaml) --with-gdbm-dir=$(brew --prefix gdbm)"

# This was not necessary but try it if you are still getting errors, and it might be nedded for especific gems
# export CFLAGS="-Wno-error=implicit-function-declaration"

RUBY_CFLAGS=-DUSE_FFI_CLOSURE_ALLOC rbenv install 2.7.0

# To actually run Rails you need this variable
export OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES
bin/rails s


# For pg gem try this

brew install libpq
export LDFLAGS="-L/opt/homebrew/opt/libpq/lib"
export CPPFLAGS="-I/opt/homebrew/opt/libpq/include"
gem install pg -v '0.18.4' --source 'https://rubygems.org/' -- --with-pg-config=/opt/homebrew/Cellar/libpq/16.0/bin/pg_config --with-cflags="-Wno-error=implicit-function-declaration"

LDFLAGS="-L/opt/homebrew/opt/libffi/lib" CPPFLAGS="-I/opt/homebrew/opt/libffi/include" gem install ffi -v '1.9.23' -- --with-cflags="-Wno-error=implicit-function-declaration" --enable-system-libffi