Missing dependencies with glib2-devel?

[Christopher Stone]

I'm getting the following error when trying to build my package with mock on F7:

$ /usr/sbin/mock-helper yum --installroot
/var/lib/mock/fedora-7-x86_64/root install 'glib2-devel'
Error: Missing Dependency: libgobject-2.0.so.0 is needed by package glib2-devel
Error: Missing Dependency: libgthread-2.0.so.0 is needed by package glib2-devel
Error: Missing Dependency: libglib-2.0.so.0 is needed by package glib2-devel
Error: Missing Dependency: libgmodule-2.0.so.0 is needed by package glib2-devel

My mock configs are unchanged from the default.