gistfile1.txt

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

    /Users/lgroeger/.rbenv/versions/2.2.2/bin/ruby -r ./siteconf20151103-3630-1f6cg8w.rb extconf.rb
*** ERROR: missing required library to compile this module: No such file or directory - gsl-config
*** 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=/Users/lgroeger/.rbenv/versions/2.2.2/bin/$(RUBY_BASE_NAME)
	--with-gsl-version

extconf failed, exit code 1

Gem files will remain installed in /Users/lgroeger/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/gsl-1.16.0.6 for inspection.
Results logged to /Users/lgroeger/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/extensions/x86_64-darwin-14/2.2.0-static/gsl-1.16.0.6/gem_make.out
An error occurred while installing gsl (1.16.0.6), and Bundler cannot continue.
Make sure that `gem install gsl -v '1.16.0.6'` succeeds before bundling.
MacBook08:drugs lgroeger$