xtrabackup hardware capability unsupported solaris 10

I’m trying to run xtrabackup 1.6 on solaris 10 x32 5/09 and when i try to run it, the following error appears:

xtrabackup --backup --datadir=/opt/mysql --target-dir=/mnt/nfs/
ld.so.1: xtrabackup: fatal: hardware capability unsupported: 0x2000 [ PAUSE ]

I’ve been searching for the error but I don’t find anything like this, can you help me? do you need other info?