The "Red Hat Developer Toolset" has been rebuilt by the Scientific Linux team.

No support from RedHat is provided, implied, or available for Scientific Linux.

Please send initial bug reports to scientific-linux-devel@listserv.fnal.gov.

For reference you may wish to review the Red Hat documentation for these rpms.
You can find it at:

https://access.redhat.com/site/documentation/Red_Hat_Developer_Toolset/