Andrea Laack wrote: > Why is redhat version 5.3 running gcc version 4.3 and centos 5.4 running > gcc version 4.1.2? When will gcc be upgraded on centos? Looks like two different versions of gcc are available CentOS: http://mirrors.kernel.org/centos/5/os/SRPMS/gcc-4.1.2-46.el5.src.rpm http://mirrors.kernel.org/centos/5/os/SRPMS/gcc44-4.4.0-6.el5.src.rpm And a 3rd version for RHEL RHEL: http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS/gcc-4.1.2-46.el5_4.1.src.rpm http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS/gcc43-4.3.2-7.el5.src.rpm http://mirrors.kernel.org/redhat/redhat/linux/enterprise/5Server/en/os/SRPMS/gcc44-4.4.0-6.el5.src.rpm So perhaps just the gcc43 package is missing from CentOS, but you can go to 4.4 if you want a newer version. nate