Changelog for libXNVCtrl-devel-1.0-4.fc6.x86_64.rpm :

* Sat Jul 28 2007 Hans de Goede 1.0-4- Add missing libXext-devel BuildRequires
* Sat Jul 28 2007 Hans de Goede 1.0-3- Link the lib against libX11 and libXext to avoid undefined non weak symbols (through updated libXNVCtrl-imake.patch)
* Mon Jul 23 2007 Hans de Goede 1.0-2- Honor optflags- Preserve timestamps of headers when installing them
* Mon Jul 16 2007 Hans de Goede 1.0-1- Initial Fedora Extras version