我有一些旧的源代码可以在ruby 1.8和rails 2.3上运行。我的系统上有rbenv。如何使用rbenv完全安装此版本的ruby（v1.8.6）？
$ rbenv install 1.8.6
Downloading ruby-1.8.6.tar.bz2...
-> https://cache.ruby-lang.org/pub/ruby/1.8/ruby-1.8.6.tar.bz2
Installing ruby-1.8.6...
WARNING: ruby-1.8.6 is past its end of life and is now unsupported.
It no longer receives bug fixes or critical security updates.
ruby-build: use readline from homebrew
BUILD FAILED (OS X 10.14.2 using ruby-build 20190423)
Inspect or clean up the working tree at /var/folders/_w/98n31_kn03qfjt51p2hmrfqh0000gp/T/ruby-build.20190701155134.45412
Results logged to /var/folders/_w/98n31_kn03qfjt51p2hmrfqh0000gp/T/ruby-build.20190701155134.45412.log
Last 10 log lines:
/var/folders/_w/98n31_kn03qfjt51p2hmrfqh0000gp/T/ruby-build.20190701155134.45412 ~
/var/folders/_w/98n31_kn03qfjt51p2hmrfqh0000gp/T/ruby-build.20190701155134.45412/ruby-1.8.6 /var/folders/_w/98n31_kn03qfjt51p2hmrfqh0000gp/T/ruby-build.20190701155134.45412 ~
checking build system type... i686-apple-darwin18.2.0
checking host system type... i686-apple-darwin18.2.0
checking target system type... i686-apple-darwin18.2.0
checking for gcc... /usr/local/bin/gcc-4.2
checking for C compiler default output file name...
configure: error: C compiler cannot create executables
See `config.log' for more details.
make: *** No targets specified and no makefile found. Stop.
我已经尝试过此解决方案，但对我而言不起作用... https://github.com/rbenv/ruby-build/issues/999
有什么想法吗？