Gnome-meeting

Hi.
I was trying to install gnome-meeting and then i got this error:
checking for libgnomeui-2.0 >= 1.112.0 ... Package libgnomeui-2.0 was not 
found in the pkg-config search path.
Perhaps you should add the directory containing `libgnomeui-2.0.pc'
to the PKG_CONFIG_PATH environment variable
No package 'libgnomeui-2.0' found

configure: error: Library requirements (libgnomeui-2.0 >= 1.112.0 ) not met; 
consider adjusting the PKG_CONFIG_PATH environment variable if your libraries 
are in a nonstandard prefix so pkg-config can find them.
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How to i fix this problem?