I'd suggest asking for support on the application support channel. Perhaps they have a dependency on some new shiny version of Curl that no-one ships yet? [by TrevorH]
CentOS 5 ships bind 9.3.6 or 9.7.0 and both are kept up to date by the upstream vendor for security issues. Compiling and installing a brand new shiny version is not supported. Your error appears t... [by TrevorH]
My team needs to install and administer a very big application on Red Hat 5.7, and needs to be able to do so as root. During the project, the Unix support team (which is responsible for the OS support) grants us (the application support team) sudo all access so we can do so.