This guy knows what's up:
$ gem install sqlite3
Building native extensions. This could take a while...
ERROR: Error installing sqlite3:
ERROR: Failed to build gem native extension.
/.../.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb --with-sqlite3-include=/usr/local/include
checking for sqlite3.h... yes
checking for sqlite3_libversion_number() in -lsqlite3... no
sqlite3 is missing. Try 'port install sqlite3 +universal'
or 'yum install sqlite-devel' and check your shared library search path (the
location where your sqlite3 shared library is located).
*** 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=/home/cap/.rvm/rubies/ruby-1.9.2-p290/bin/ruby
--with-sqlite3-dir
--without-sqlite3-dir
--with-sqlite3-include=${sqlite3-dir}/include
--with-sqlite3-lib
--without-sqlite3-lib=${sqlite3-dir}/lib
--enable-local
--disable-local
--with-sqlite3lib
--without-sqlite3lib
Gem files will remain installed in /.../.rvm/gems/ruby-1.9.3-rc1/gems/sqlite3-1.3.6 for inspection.
Results logged to /.../sqlite3-1.3.6/ext/sqlite3/gem_make.out
$ gem install sqlite3 -- --with-sqlite3-dir=/usr/local
Building native extensions. This could take a while...
Successfully installed sqlite3-1.3.6
1 gem installed
Installing ri documentation for sqlite3-1.3.6...
Installing RDoc documentation for sqlite3-1.3.6...
$ fortune