If you ever find yourself in my situation, where installing some updated port from a relatively freshly done cvsup ends up breaking a couple dozen other programs because it decided to upgrade several libraries, you might find the following for loop useful:

cd /usr/X11R6/bin && for m in $(for l in $(for j in $(for i in *; do
ldd $i 2>/dev/null | grep -q "not found" && echo $i; done);do
egrep "bin/$j" /var/db/pkg/*/+CONTENTS;done | sort -u | cut -f1 -d:);do
grep " ORIGIN" $l;done | cut -f2 -d: | sort -u);do
cd /usr/ports/$m && make && make deinstall && make reinstall;done

Obviously, the above is evil in itself, so it should be considered a “quick fix” and nothing more. Enjoy!