Is GHC 6.8.2 on solaris 32 bits or 64 bits

Thank you for porting GHC 6.8.2 to solaris, I am assigned a job to make sure GHC run 64 bits on solaris. Is your solaris port 64 bits. Or it only 32 BITS. I know 32 bits GHC can still run on 64 bits solaris. However company want to run really 64 bits GHC on solaris. Thanks a lot if you can give me feedback. Sincerely, Hsing-chou chen