gistfile1.txt

Building native extensions.  This could take a while...
ERROR:  Error installing debugger-linecache:
	ERROR: Failed to build gem native extension.

/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
*** 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=/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby
extconf.rb:2:in `require': no such file to load -- debugger/ruby_core_source (LoadError)
	from extconf.rb:2


Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/debugger-linecache-1.1.2 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/debugger-linecache-1.1.2/ext/trace_nums/gem_make.out