Cilkview Cilkscreen Centos 7

Issues with Cilktools.  I have compiled and installed gcc 4.9 and gcc 5.2 on Centos 7 and installed them.  The fib.c test code runs fine for both gcc's.  

However when I attempt to use the cilktools provided on: 

I get the following error:

./cilkview: error while loading shared libraries: libstdc++.so.6: wrong ELF class: ELFCLASS64

I believe this is a 32bit lib issue but how can it be over come.  I saw some links discussing this in 2012...  Nothing since.  Is there an updated source code that can be recompiled?  Or is there a 64bit version.  The tools would be very helpful I am thinking about using Cilk Plus this fall in a class but I need the tools to be working!  The cilkplus org webpages have not been updated since 2013... 

Thank you for your help,