[Ekiga-list] No package 'sigc++-2.0' found

[Roger <arelem bigpond com>]

I'm running Fedora 11 on an intel clone, Gigabyte mb 2mb ram, and 
Geforce 8600gt video card. No sound card just what's on the mb.

Trying to install Ekiga 3.2.6

./configure reports:
checking for SIGC... configure: error: Package requirements (sigc++-2.0) 
were not met:
I'm running Fedora 11 latest updates in an intel clone.
Ekiga ./configure reports:

No package 'sigc++-2.0' found

do I need to:
  set the environment variables SIGC_CFLAGS
and SIGC_LIBS to avoid the need to call pkg-config.

if so how. I don't know how to do this.

yum whatprovides sigc++-2.0 says  no package available and Cybergod 
Google isn't any help a lot of talk about it but no information.

Can someone help please
TIA
Roger