The gnome-config file gtkhtmlConf.sh is currently in the gnome-vfs RPM, which makes configure scripts that rely on gnome-config to find installed libraries pass even though the necessary files aren't installed. Other packages have their conf files in the -devel RPM.
Of course I mean the gtkhtml RPM instead of the gnome-vfs RPM ... just a cut'n'paste error.
This defect is considered SHOULD-FIX for Fairfax.
Fixed in gtkhtml-0.9.2-9