Install fails on El Capitan with dyld: lazy symbol binding failed: Symbol not found: _clock_gettime

[thebarty]

Hi guys,

I am trying to get mailcatcher running on OSX 10.11.6 (El Capitan).

Unfortunatly I am getting the following error:

mailcatcher
/usr/local/lib/ruby/gems/2.4.0/gems/sinatra-1.4.7/lib/sinatra/base.rb:1226: warning: constant ::Fixnum is deprecated
/usr/local/lib/ruby/gems/2.4.0/gems/sinatra-1.4.7/lib/sinatra/base.rb:1226: warning: constant ::Fixnum is deprecated
/usr/local/lib/ruby/gems/2.4.0/gems/sinatra-1.4.7/lib/sinatra/base.rb:1226: warning: constant ::Fixnum is deprecated
/usr/local/lib/ruby/gems/2.4.0/gems/sinatra-1.4.7/lib/sinatra/base.rb:1226: warning: constant ::Fixnum is deprecated
Starting MailCatcher
dyld: lazy symbol binding failed: Symbol not found: _clock_gettime
  Referenced from: /usr/local/lib/ruby/gems/2.4.0/gems/eventmachine-1.0.9.1/lib/rubyeventmachine.bundle (which was built for Mac OS X 10.12)
  Expected in: /usr/lib/libSystem.B.dylib

dyld: Symbol not found: _clock_gettime
  Referenced from: /usr/local/lib/ruby/gems/2.4.0/gems/eventmachine-1.0.9.1/lib/rubyeventmachine.bundle (which was built for Mac OS X 10.12)
  Expected in: /usr/lib/libSystem.B.dylib

Trace/BPT trap: 5

I did a

sudo gem install mailcatcher

Any ideas how to get this running?

[matthewsmith-io]

I got this same error (also on OSX 10.11.6) and eventually got it running.

A Stack Overflow thread said to run xcode-select --install which didn't work.

Reinstalling eventmachine worked for me:

gem uninstall eventmachine
gem install eventmachine
gem install eventmachine -v '1.0.9.1'

I'm not sure if xcode-select --install had anything to do with it.

[sj26]

@thebarty please re-open or file another issue if the latest version of mailcatcher and the above fix aren't working for you.

[martineng]

@matthewsmith-io
Thanks for the solution. I experienced the same issue and executed the reinstallation.
However from my testing, without executing xcode-select --install, the error will remain.
By running xcode-select --install first and reinstalling gem install eventmachine -v '1.0.9.1' fixed the issue.
Thanks!