Mine

khalia kiorky # cat /root/bin/remergeX.sh
#!/bin/sh
# permet de remerger des bouts de x, car XMOD FAIT CHIER
libs="l font-misc-misc\
        libICE\
        libSM\
        libX11\
        libXau\
        libXdmcp\
        libXext\
        libXft\
        libXpm\
        libXrender\
        libXt\
        #xorg-server\
        #mesa\
        media-fonts/font-cursor-misc
        "

tomerge=""
for i in $libs; do
        if  [[ ! $(echo "$i"| sed "s/^\s*#.*/KO/") = "KO" ]]; then
                tomerge="$tomerge $i"
        fi
done;
emerge -k $tomerge