what is install-info in an RPM install?

[Pollywog]

What does this error mean?



[root@lilypad pollywog]# rpm -i libstdc++-devel-2.8.1-1.i386.rpm 
failed dependencies:
        /sbin/install-info   is needed by libstdc++-devel-2.8.1-1
        libstdc++ is needed by libstdc++-devel-2.8.1-1


thanks

--
Andrew