Problem building dia 0.92

[mike crowe hp com]

While attempting to build an installation kit for dia 0.92,
using the command:

rpmbuild -ta dia-0.92.tar.gz

I received the error message below, which was the last thing
printed:

RPM build errors:
    File not found:
/var/tmp/dia-0.92-root/usr/share/gnome/apps/Applications/dia.desktop


Indeed, there is not such file, or anything other than a "help" directory in
var/tmp/dia-0.92-root/usr/share/gnome


I simply copied the tar.gz file to a temporary directory on
my Linux 9 system and initiated the rpmbuild command.
Am I missing a step, or is there a problem with the source distribution?

Thanks,
Mike Crowe