[newbie] gcc++ question

[Barbara]

I was trying to configure ddd and while running configure, I got this error

checking whether the C++ compiler (c++) compiles a simple program... no
configure: error: You must set the environment variable CXX to a working
                  C++ compiler.  Also check the CXXFLAGS settings.
                  See the file 'config.log' for further diagnostics.

This is a regular 7.1 Mandrake installation.

Any ideas what I need to do here? Thanks!

Barbara