Rails - Jun 2013 - Installing gems to user directory - Configurations - How to ?

I compiled Ruby from source, and installed it to /opt/ruby/ . 
The purpose is to have two versions of Ruby 1.9 and Ruby 1.8 ... Certain 
users can use 1.9

After creating a rails app (rails new app) , When a script performs `bundle 
install`, the gems are trying to get installed in /opt/ruby/. 
How to configure it to install it in user_home directory ?

I don''t want to use the solution, where I install the gems as the root
user
to the ruby bin directory. 

This is the error that I get:

Gem::Exception: Cannot load gem at 
[/opt/ruby/lib/ruby/gems/1.9.1/cache/multi_json-1.7.7.gem] in 
/home/boopathi/apps/abcd
An error occurred while installing multi_json (1.7.7), and Bundler cannot 
continue.
Make sure that `gem install multi_json -v ''1.7.7''` succeeds
before bundling.

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You could use rvm or rbenv instead.
On Jun 24, 2013 10:05 PM, "Boopathi Rajaa"
<legend.raju-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> I compiled Ruby from source, and installed it to /opt/ruby/ .
> The purpose is to have two versions of Ruby 1.9 and Ruby 1.8 ... Certain
> users can use 1.9
>
> After creating a rails app (rails new app) , When a script performs
> `bundle install`, the gems are trying to get installed in /opt/ruby/.
> How to configure it to install it in user_home directory ?
>
> I don''t want to use the solution, where I install the gems as the
root
> user to the ruby bin directory.
>
> This is the error that I get:
>
> Gem::Exception: Cannot load gem at
> [/opt/ruby/lib/ruby/gems/1.9.1/cache/multi_json-1.7.7.gem] in
> /home/boopathi/apps/abcd
> An error occurred while installing multi_json (1.7.7), and Bundler cannot
> continue.
> Make sure that `gem install multi_json -v ''1.7.7''`
succeeds before
> bundling.
>
>  --
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>
https://groups.google.com/d/msgid/rubyonrails-talk/12228825-793f-4fa2-b7a1-7386c342b652%40googlegroups.com
> .
> For more options, visit https://groups.google.com/groups/opt_out.
>
>
>
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Boopathi Rajaa wrote in post #1113443:
> I compiled Ruby from source, and installed it to /opt/ruby/ .
> The purpose is to have two versions of Ruby 1.9 and Ruby 1.8 ... Certain
> users can use 1.9
>
> After creating a rails app (rails new app) , When a script performs
> `bundle
> install`, the gems are trying to get installed in /opt/ruby/.
> How to configure it to install it in user_home directory ?
>
> I don''t want to use the solution, where I install the gems as the
root
> user
> to the ruby bin directory.
Are you not able to use one of the Ruby version managers?

https://github.com/sstephenson/rbenv
or
https://rvm.io

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