gem install XXX报错
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问题：
1、安装Ruby;
2、安装rubygems：yum -y install rubygems
3、通过gem安装bundle：gem install bundle
ERROR: While executing gem ... (Gem::Exception)
Unable to require openssl, install OpenSSL and rebuild ruby (preferred) or use non-HTTPS sources方案：
[root@localhost ~]# yum -y install openssl-devel
...省略...
[root@localhost ~]# cd /opt/ruby-3.0.2/ext/openssl/
[root@localhost openssl]# ruby ./extconf.rb
checking for t_open() in -lnsl... no
checking for socket() in -lsocket... no
...省略...
creating extconf.h
creating Makefile
[root@localhost openssl]# vim /opt/ruby-3.0.2/ext/openssl/Makefile #在/opt/ruby-3.0.2/ext/openssl/Makefile文件顶部添加top_srcdir = ../..
[root@localhost openssl]# pwd
/opt/ruby-3.0.2/ext/openssl
[root@localhost openssl]# make install以上是关于gem install XXX报错的主要内容，如果未能解决你的问题，请参考以下文章