Error installing therubyracer

I am using Fedora 16 fresh install, latest upgrades, I have gcc, gems,
libv8, make, bundler etc installed.
This error has me tossed.I've googled for hours and not found a

firefox localhost:3000/blog displays: Unable to connect.
Permissions on /ror_apps/blog are 777

Please can someone point me to what is wrong?
Thanks in advance.

ERROR: Error installing therubyracer:
  ERROR: Failed to build gem native extension.

        /usr/bin/ruby extconf.rb
creating Makefile

g++ -I.
-I/usr/lib64/ruby/1.8/x86_64-linux -I/usr/lib64/ruby/1.8/x86_64-linux
-I. -Wall -g -rdynamic -fPIC -O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -fno-strict-aliasing
-fPIC -c v8_v8.cpp
make: g++: Command not found
make: *** [v8_v8.o] Error 127

Looks like you need to install g++: ‘sudo yum install gcc-c++’