do_sqlite3 not loading

[jamtur01]

I am seeing:

cannot load such file -- do_sqlite3/do_sqlite3

do_sqlite3 (0.10.12)
dm-sqlite-adapter (1.2.0)
dm-core (1.2.0)
ruby 1.9.3p392 (2013-02-22 revision 39386) [x86_64-linux]

[asciipip]

I have the same problem, and I'm not sure how to debug it.

I'm on a Fedora 20 system with the following RPMs:

• ruby-2.0.0.353-16.fc20.x86_64

and the following gems:

• do_sqlite3 (0.10.14)
• data_objects (0.10.14)

Here's a sample irb session:

$ irb
irb(main):001:0> require 'do_sqlite3'
LoadError: cannot load such file -- do_sqlite3/do_sqlite3
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:55:in `require'
        from /usr/local/share/gems/gems/do_sqlite3-0.10.14/lib/do_sqlite3.rb:28:in `<top (required)>'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:135:in `require'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
        from /usr/share/rubygems/rubygems/core_ext/kernel_require.rb:144:in `require'
        from (irb):1
        from /usr/bin/irb:12:in `<main>'
irb(main):002:0>

The system is an x86_64 Fedora 20 install (running in a qemu VM, if that makes a difference). /usr/local, where the gems are installed, is mounted via NFS. I can load other gems from /usr/local. The permissions leading up to /usr/local/share/gems/gems/do_sqlite3-0.10.14/ext/do_sqlite3/do_sqlite3.so all look reasonable. SELinux is enabled but no AVCs are reported and the problem persists when I set SELinux to permissive.

Is there any additional debugging I can do to determine why do_sqlite3/do_sqlite3 is failing to load?