does gem fcgi require fcgi to be installed?

Does anyone know if the gem fcgi needs fcgi to be installed on my machine? I'm trying to install the gem fcgi and I'm getting the following message:

-bash-3.00# gem install fcgi Updating metadata for 9 gems from ......... complete Building native extensions. This could take a while... ERROR: Error installing fcgi:         ERROR: Failed to build gem native extension.

/usr/bin/ruby extconf.rb install fcgi checking for fcgiapp.h... no checking for fastcgi/fcgiapp.h... no *** 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=/usr/bin/ruby         --with-fcgi-dir         --without-fcgi-dir         --with-fcgi-include         --without-fcgi-include=${fcgi-dir}/include         --with-fcgi-lib         --without-fcgi-lib=${fcgi-dir}/lib

Gem files will remain installed in /usr/lib64/ruby/gems/1.8/gems/ fcgi-0.8.7 for inspection. Results logged to /usr/lib64/ruby/gems/1.8/gems/fcgi-0.8.7/ext/fcgi/ gem_make.out -bash-3.00#

I'd like to add that the mkmf.log has the following: have_header: checking for fastcgi/fcgiapp.h... -------------------- no

"gcc -E -I. -I/usr/lib64/ruby/1.8/x86_64-linux -I. -O2 -g -Wall -fPIC conftest.c -o conftest.i" conftest.c:1:29: fastcgi/fcgiapp.h: No such file or directory checked program was: /* begin */ 1: #include <fastcgi/fcgiapp.h> /* end */