Question

I want to install ruby.
My OS is centos5.5.
When I gem install bundle
this get something wrong

ERROR: Loading command: install (LoadError)
no such file to load — zlib
ERROR: While executing gem … (NameError)
uninitialized constant Gem::Commands::InstallCommand

I try yum install zlib, but it prompts

Package zlib-1.2.3-4.el5.i386 already installed and latest version

I have searched this error, but I still can not solve this problem.
I found /usr/local/rvm/src has zlib-1.2.6.
I try into /usr/local/rvm/src/ruby-1.9.2-p318/ext/zlib and compile it
ruby extconf.rb
But I got this infomations:

checking for deflateReset() in -ltrue... no
checking for deflateReset() in -llibz... no
checking for deflateReset() in -lzlib1... no
checking for deflateReset() in -lzlib... no
checking for deflateReset() in -lzdll... no

So how can I do?
Thanks.

Answer 1

It seems rvm is unable to find zlib. Try reinstalling ruby by first installing zlib for the rvm.

rvm pkg install zlib
rvm remove 1.9.2 
rvm install 1.9.2