Currently Requires/BuildRequires on gecko-libs for galeon are not exact but use: ">=" greater than or equal to constructs.  This is not correct because it depends on the unstable xulrunner API and even minor version changes require a rebuild, otherwise it is not guaranteed to work.

The ">=" leads to odd situations where a version of galeon that has been rebuilt against a new version of xulrunner can be installed without the corresponding xulrunner package *also* being installed.   This should not happen, galeon should either install only with matching xulrunner, or otherwise fail noisily.  This happened to me using "--skip-broken" option with yum because epiphany-extensions wouldn't install:

yum update


[...]
--> Running transaction check
---> Package galeon.i386 0:2.0.7-13.fc10 set to be updated

--> Finished Dependency Resolution

Packages skipped because of dependency problems:
    Miro-2.0.5-3.fc10.i386 from updates
    blam-1.8.5-13.fc10.i386 from updates
    epiphany-2.24.3-9.fc10.i386 from updates
    firefox-3.0.13-1.fc10.i386 from updates
    gnome-python2-extras-2.19.1-33.fc10.i386 from updates
    gnome-python2-gtkhtml2-2.19.1-33.fc10.i386 from updates
    gnome-python2-gtkmozembed-2.19.1-33.fc10.i386 from updates
    gnome-python2-gtkspell-2.19.1-33.fc10.i386 from updates
    gnome-python2-libegg-2.19.1-33.fc10.i386 from updates
    gnome-web-photo-0.3-21.fc10.i386 from updates
    xulrunner-1.9.0.13-1.fc10.i386 from updates
    xulrunner-devel-1.9.0.13-1.fc10.i386 from updates
    yelp-2.24.0-12.fc10.i386 from updates

Note that the new version galeon of galeon will be updated, but the corresponding xulrunner is skipped.  I would expect that galeon also be skipped in this case, but successfully installs.

Solution is to make all ">=" in R/BR into equalities "=" and use the full exact version of gecko-libs, e.g. "1.9.1.2" , not just the major and minor version "1.9" as do other packages such as Miro.

Note that although I reported this against F-10, the inequality problem is also present in F-11 and rawhide.