The "Red Hat Developer Toolset" product has been rebuilt by the Scientific Linux team for SL 6.2 and newer . "Red Hat Developer Toolset" provides a updated GCC (4.7) . This does not replace the GCC that comes with 6. It is installed in parallel in /opt/rh/ . A new product called "software collections" is now provided to enable the installation and use of products that are installed in parallel . A rpm containing a repo file is available at ftp://ftp.scientificlinux.org/linux/scientific/6x/external_products/devtoolset/yum-conf-devtoolset-1.0-1.el6.noarch.rpm Minimum release is SL 6.2 . For reference you should review the Red Hat documentation for these rpms. You can find it at: https://access.redhat.com/site/documentation/Red_Hat_Developer_Toolset/ No support from RedHat is provided or implied for Scientific Linux rebuilt products. Please send initial bug reports to [log in to unmask] -Connie Sieh