https://bugzilla.redhat.com/show_bug.cgi?id=1263941
--- Comment #6 from Jason Tibbitts tibbs@math.uh.edu --- Just so you know, the packaging guidelines include no implicit minimum build system and while I doubt it will actually happen, it's quite possible for gcc to not be there. Nobody is enforcing this currently, but if buildroot changes break your packages due to incompletely specified dependencies then you do get to keep all of the pieces.
Plus having the actual dependencies properly specified does make it easier for distro bootstrapping, though that is a minor thing for a leaf package such as this.