libpq-dev required but not mentioned in docs

[ralph-tice]

The documentation doesn't mention that the libpq-dev package (for Ubuntu... don't know if this matches packages on other distros) is required to obtain the libpq-fe.h header.

After libpq-dev is installed, ri-doc installation outputs this error:
invalid options: -f fivefish (invalid options are ignored)

[jelder]

This plugin was developed primarily for use on Heroku, in concert with our heroku_postgres_monitor agent. I think Heroku uses Ubuntu or Debian behind the scenes so it's definitely possible, but not something we're likely to support without a PR from someone, maybe you?

[ralph-tice]

I only opened this issue so that the dependency could get documented in the Requirements section. I didn't expect a native extension (which I now see is getting pulled in by the pg gem), and maybe that's silly of me.

[deleted]

+1 on documenting the dependencies. Here's what I had to install to get this to run on Ubuntu 12.1:

• ruby
• ruby-dev
• libpq
• libpq-dev
• ruby gems: bundler and newrelic_postgres_plugin