Fails to compile / install on Ruby 2.1.x

[virtualfunction]

Updating timers
Building native extensions.  This could take a while...
ERROR:  Error installing timers:
    ERROR: Failed to build gem native extension.

    ~/.rubies/2.1.0/bin/ruby extconf.rb
checking for clock_gettime() in -lrt... *** 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
    --without-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=~/.rubies/2.1.0/bin/ruby
    --with-rtlib
    --without-rtlib
~/.rubies/2.1.0/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
....
extconf failed, exit code 1

I'm guessing clock_gettime has changed in the Ruby 2.1.x src?

[copiousfreetime]

hmm.. that is odd. clock_gettime is not a ruby method, its a system method -- see http://man7.org/linux/man-pages/man2/clock_gettime.2.html

What system are you compiling on?

[virtualfunction]

Ubuntu 13.10 x64, lowlatency kernel. I'm using chruby / ruby-build (recently switch from rvm, I wouldn't think this is an issue if you say it's a system method as opposed to ruby)

[copiousfreetime]

@virtualfunction My apologies for not updating this in a while. Do you happen to have a virtual box / vagrant image, or link to appropriate image I could use to dig into this issue for you? I'm pretty sure it has to do with finding librt in the system you are on.

[copiousfreetime]

@virtualfunction I'm pushing a new release later today that I think will solve this.

[copiousfreetime]

Version 1.2.2 released, please let me know if this doesn't work for you @virtualfunction.