Building RPM from gtk+-2.2

[Vladislav Grinchenko <vladg erols com>]

Hi,

I downloaded gtk2.2 tarballs and am trying to build RPM packages without
much luck:

# rpmbuild -tb gtk+-2.2.1.tar.gz

error: Name field must be present in package: (main package)
error: Version field must be present in package: (main package)
error: Release field must be present in package: (main package)
error: Summary field must be present in package: (main package)
error: Group field must be present in package: (main package)
error: License field must be present in package: (main package)

This is RH8.0.

thanks, VLG