linecache19 & bundler

gistfile1.txt

Installing ruby_core_source (0.1.5) 
Installing linecache19 (0.5.11) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

/usr/local/bin/ruby extconf.rb 
checking for vm_core.h... no
checking for vm_core.h... no
*** 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=/usr/local/bin/ruby
	--with-ruby-dir
	--without-ruby-dir
	--with-ruby-include
	--without-ruby-include=${ruby-dir}/include
	--with-ruby-lib
	--without-ruby-lib=${ruby-dir}/lib
/usr/local/lib/ruby/1.9.1/fileutils.rb:243:in `mkdir': Permission denied - /usr/local/include/ruby-1.9.1/ruby-1.9.1-p376 (Errno::EACCES)
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:243:in `fu_mkdir'
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:217:in `block (2 levels) in mkdir_p'
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:215:in `reverse_each'
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:215:in `block in mkdir_p'
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:201:in `each'
	from /usr/local/lib/ruby/1.9.1/fileutils.rb:201:in `mkdir_p'
	from /workspace/qa_review/bundle/ruby/1.9.1/gems/ruby_core_source-0.1.5/lib/ruby_core_source.rb:59:in `block in create_makefile_with_core'
	from /usr/local/lib/ruby/1.9.1/tempfile.rb:199:in `open'
	from /workspace/qa_review/bundle/ruby/1.9.1/gems/ruby_core_source-0.1.5/lib/ruby_core_source.rb:51:in `create_makefile_with_core'
	from extconf.rb:20:in `<main>'
Requesting http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p376.tar.gz
Downloading http://ftp.ruby-lang.org/pub/ruby/1.9/ruby-1.9.1-p376.tar.gz