Sqlite3 su Ruby1.9

┌─[ 11:36:18 giovanni@giovanni /srv/www/htdocs/sinatra/public $ ]
└─[ $> gem --version
1.8.11
┌─[ 11:36:22 giovanni@giovanni /srv/www/htdocs/sinatra/public $ ]
└─[ $> ruby --version
ruby 1.9.3p0 (2011-10-30 revision 33570) [x86_64-linux]
┌─[ 11:36:29 giovanni@giovanni /srv/www/htdocs/sinatra/public $ ]
└─[ $> sudo gem install sqlite3
Building native extensions. This could take a while...
ERROR: Error installing sqlite3:
ERROR: Failed to build gem native extension.

/usr/bin/ruby1.9 extconf.rb
mkmf.rb can't find header files for ruby at /usr/lib64/ruby/include/ruby.h


Gem files will remain installed in /usr/lib64/ruby/gems/1.9.1/gems/sqlite3-1.3.5 for inspection.
Results logged to /usr/lib64/ruby/gems/1.9.1/gems/sqlite3-1.3.5/ext/sqlite3/gem_make.out