[Fedora-packaging] Appropriate values fot gitversion, gitdate from git clone?

Dear Packagers, Wanting to build a new xorg-x11-drv-ati that will finally enable our iMac 27-inch machines to work with free radeon drivers, I don't understand how to select canonical values for gitversion and gitdate. If there is any documentation describing such RPM packaging standards relating to git, please point me at it. -- Nick Urbanik http://nicku.org nicku(a)nicku.org GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24 ID: BB9D2C24