Re: [ANN]: cpuminer-opt v3.6.6, open source optimized multi-algo CPU miner

[root@CC ~]# rpm -qa|grep gcc
libgcc-4.4.7-18.el6.x86_64
gcc-c++-4.4.7-18.el6.x86_64
gcc-4.4.7-18.el6.x86_64
libgcc-4.4.7-18.el6.i686

Yes, you need to upgrade to newer gcc. Or ask joblo to support a compiler that's 9 years old.