Error

C:\>gem install sqlite3 --platform=ruby -- --with-sqlite3-dir=C:/distr/sqlite --
with-sqlite3-include=C:/distr/sqlite
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-sqlite3-dir=C:/distr/sqlite --with-sqli
te3-include=C:/distr/sqlite'
This could take a while...
ERROR:  Error installing sqlite3:
        ERROR: Failed to build gem native extension.

    C:/Ruby200/bin/ruby.exe extconf.rb --with-sqlite3-dir=C:/distr/sqlite --with
-sqlite3-include=C:/distr/sqlite
checking for sqlite3.h... no
sqlite3.h is missing. Install SQLite3 from http://www.sqlite.org/ first.
*** 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=C:/Ruby200/bin/ruby
        --with-sqlite3-dir
        --with-sqlite3-include=${sqlite3-dir}/include
        --with-sqlite3-lib
        --without-sqlite3-lib=${sqlite3-dir}/
        --enable-local
        --disable-local


Gem files will remain installed in C:/Ruby200/lib/ruby/gems/2.0.0/gems/sqlite3-1
.3.7 for inspection.
Results logged to C:/Ruby200/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/ext/sqlite3/
gem_make.out

C:\>