mac 安装 多版本ruby手记

1.修改libtool

修改libtool

sudo mv /opt/local/bin/libtool libtool_.bak

env CFLAGS='-g -O2' RUBY_CONFIGURE_OPTS="--with-readline-dir=`brew --prefix readline`" CC=/usr/bin/gcc ruby-install ruby 2.7.1

2.openssl错误

make[1]: *** [apps/openssl] Error 1

export CFLAGS='-g -O2' 

export  RUBY_CONFIGURE_OPTS="--with-readline-dir=

export  CC=/usr/bin/gcc

rbenv install 2.7.1