Problem with installing a gem

[Kellan Strong]

Hello All,
I am receiving this error for secure forward on some of my boxes. This doesn't happen on my other servers with the same layout. I am trying to figure out if there is a package missing or something. Any help would be appreciated.

The servers are running squeeze 6. While the working servers are squeeze 6 as well.

Building native extensions.  This could take a while...
ERROR:  Error installing fluent-plugin-secure-forward:
    ERROR: Failed to build gem native extension.

        /opt/td-agent/embedded/bin/ruby extconf.rb
checking for ruby/st.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/opt/td-agent/embedded/bin/ruby
/opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:1067:in `block in have_header'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
    from /opt/td-agent/embedded/lib/ruby/2.1.0/mkmf.rb:1066:in `have_header'
    from extconf.rb:3:in `<main>'


Gem files will remain installed in /opt/td-agent/embedded/lib/ruby/gems/2.1.0/gems/msgpack-0.5.11 for inspection.
Results logged to /opt/td-agent/embedded/lib/ruby/gems/2.1.0/gems/msgpack-0.5.11/ext/msgpack/gem_make.out

[Kazuki Ohta]

Could you check your mkmf.log?

> Could not create Makefile due to some reason, probably lack of necessary
> libraries and/or headers.  Check the mkmf.log file for more details.  You may
> need configuration options.

Need more information to solve your problem.

==

Kazuki Ohta | Founder and CTO, Treasure Data

Cell: +1-650-223-5679

k...@treasure-data.com | www.treasuredata.com

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[Mr. Fiber]

> You have to install development tools first.

From this message, I assume you don't install development tools package.

td-agent 2 itself doesn't require such tools in dependencies.

So if you want to install gem library which has C extension,

you should install development tools before.

Masahiro

[Chris Riddell]

Had the same issue -

I was using gem instead of td-agent-gem to install with.

If that was not your problem, try yum install -y ruby-devel gcc and try again