Package: compat-gcc-34-c++

"compat-gcc-34-c++" package binaries on CentOS:

/usr/bin/g++34 /usr/bin/x86_64-redhat-linux-c++34 /usr/bin/x86_64-redhat-linux-g++34

You may install this package on CentOS with yum install compat-gcc-34-c++