$gem install ruby-debug
Fetching: columnize-0.3.6.gem (100%)Successfully installed columnize-0.3.6Fetching: rbx-require-relative-0.0.9.gem (100%)Successfully installed rbx-require-relative-0.0.9Fetching: linecache-0.46.gem (100%)Building native extensions. This could take a while…ERROR: Error installing ruby-debug: ERROR: Failed to build gem native extension.
/home/wangliang/.rvm/rubies/ruby-2.0.0-p247/bin/ruby extconf.rb
Can’t handle 1.9.x yet*** extconf.rb failed ***Could not create Makefile due to some reason, probably lack of necessarylibraries and/or headers. Check the mkmf.log file for more details. You mayneed configuration options.
Provided configuration options: –with-opt-dir –without-opt-dir –with-opt-include –without-opt-include=${opt-dir}/include –with-opt-lib –without-opt-lib=${opt-dir}/lib –with-make-prog –without-make-prog –srcdir=. –curdir –ruby=/home/wangliang/.rvm/rubies/ruby-2.0.0-p247/bin/ruby
Gem files will remain installed in /home/wangliang/.rvm/gems/ruby-2.0.0-p247/gems/linecache-0.46 for inspection.Results logged to /home/wangliang/.rvm/gems/ruby-2.0.0-p247/gems/linecache-0.46/ext/gem_make.out
