Fix GTK+ crashes due to bad XDG_DATA_DIRS

[Joe Marcus Clarke]

There is a problem with kde-xdg-env in that it adds a duplicate path
entry to XDG_DATA_DIRS when LOCALBASE == KDE_PREFIX.  This triggers
memory corruption in the xdgmime code used by GTK+ and gnome-vfs, and
can lead to strange crashes in apps like Firefox and Thunderbird.

This patch corrects this problem and adds a missing
LOCALBASE/share/gnome path to XDG_DATA_DIRS.  May I commit, or would one
of you do the honors?  Thanks.

http://www.marcuscom.com/downloads/kde-xdg-env.diff

Joe

-- 
Joe Marcus Clarke
FreeBSD GNOME Team      ::      gnome at FreeBSD.org
FreeNode / #freebsd-gnome
http://www.FreeBSD.org/gnome
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