[zeromq-dev] LoadError: libzmq.so.1: cannot open shared object file: No such file or directory - /home/justin/.rvm/gems/ruby-1.9.2-p136/gems/zmq-2.1.0.1/lib/zmq.so

[Justin Stanczak]

This fixes the issue I had. However when you ldconfig -v it will complain
you already have that path. Is this the correct method?

SOURCE: https://bugs.edge.launchpad.net/ubuntu/+source/xorg/+bug/366728

It seems the proper way to "add to LD_LIBRARY_PATH" is not by using that env
anymore, but by using ldconfig and /etc/ld.so.conf.d/*.conf files.

1. Add the ld.so configuration file :

echo "/opt/qt-mobility-src-1.0.0-tp2/install/lib" | sudo tee
/etc/ld.so.conf.d/qt-mobility.conf

2. Update the cache

sudo ldconfig -v

Now the libraries are in your ld library path.

No messing with /etc/environment. And if you later decide to "uninstall" the
libraries, just remove the conf file and run sudo ldconfig again. Cleaner
solution for me.

I just wonder if this is also portable to other distros beside Ubuntu?
(since LD_LIBRARY_PATH supposedly works on all Linux distros)

See http://linux.derkeiler.com/Mailing-Lists/Ubuntu/2008-02/msg02742.htmlfor
rationale.

"AFAIK LD_LIBRARY_PATH is unset in ubuntu, since the libraries are all
where they should be:)"



On Mon, Apr 11, 2011 at 11:31 AM, Justin Stanczak <rizenine at gmail.com>wrote:

> I'm getting this error when loading zmq under irb. Now that I'm typing this
> out, it looks like I need to have the 'make install' copy all files into the
> "/home/justin/.rvm/gems/ruby-1.9.2-p136/gems/zmq-2.1.0.1/lib/" folder. Does
> this sound right? I'm going to give it a try, but if someone know how to
> setup zmq under rvm let me know.
>
> ruby-1.9.2-p136 :002 > require 'zmq'
> LoadError: libzmq.so.1: cannot open shared object file: No such file or
> directory -
> /home/justin/.rvm/gems/ruby-1.9.2-p136/gems/zmq-2.1.0.1/lib/zmq.so
>  from
> /home/justin/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:53:in
> `require'
> from
> /home/justin/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:53:in
> `rescue in require'
>  from
> /home/justin/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:35:in
> `require'
> from (irb):2
>  from /home/justin/.rvm/rubies/ruby-1.9.2-p136/bin/irb:16:in `<main>'
> ruby-1.9.2-p136 :003 >
>
>
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