find / -name *.ttf -exec cp {} /tmp/test/fonts \;

superlinux:/tmp/test/fonts # ls
.                                LucidaTypewriterOblique.ttf  ariblk.ttf    palscr.ttf
..                               LucidaTypewriterRegular.ttf  broad.ttf     pascsb.ttf
Court___.ttf                     Thonb___.ttf                 crystal.ttf   primer.ttf
Courtb__.ttf                     Thonbi__.ttf                 cumbbc.ttf    shef_bd.ttf
Courtbi_.ttf                     Thonburi.ttf                 cumbbic.ttf   shef_it.ttf
Courti__.ttf                     Thoni___.ttf                 cumbc.ttf     shef_rg.ttf
Devamt.ttf                       albanybc.ttf                 cumbic.ttf    soui.ttf
Devamtb.ttf                      albanyc.ttf                  cyrvetic.ttf  starbats.ttf
LucidaBrightDemiBold.ttf         albanyic.ttf                 gara_bd.ttf   starmath.ttf
LucidaBrightDemiItalic.ttf       albanyzc.ttf                 gara_bdi.ttf  starsymb.ttf
LucidaBrightItalic.ttf           ans_____.ttf                 gara_i.ttf    thornbcp.ttf
LucidaBrightRegular.ttf          ansb____.ttf                 gara_r.ttf    thorncp.ttf
LucidaSansDemiBold.ttf           ansbi___.ttf                 ims_i.ttf     thornicp.ttf
LucidaSansDemiOblique.ttf        ansi____.ttf                 is______.ttf  thornzcp.ttf
LucidaSansOblique.ttf            arialn.ttf                   kidpr.ttf     timrom.ttf
LucidaSansRegular.ttf            arialnb.ttf                  kidprbol.ttf  tt1173m_.ttf
LucidaTypewriterBold.ttf         arialnbi.ttf                 nasaliza.ttf
LucidaTypewriterBoldOblique.ttf  arialni.ttf                  opens___.ttf
superlinux:/tmp/test/fonts #

superlinux:/tmp/test/fonts # ttmkfdir > fonts.dir-test
font ./LucidaSansDemiBold.ttf: unknown usWeightClass 6
font ./LucidaBrightItalic.ttf: unknown usWeightClass 6
font ./LucidaTypewriterOblique.ttf: unknown usWeightClass 5
font ./LucidaSansDemiOblique.ttf: unknown usWeightClass 6
font ./LucidaTypewriterBoldOblique.ttf: unknown usWeightClass 6
font ./LucidaTypewriterRegular.ttf: unknown usWeightClass 0
font ./LucidaTypewriterRegular.ttf: unknown usWidthClass 0
font ./LucidaSansOblique.ttf: unknown usWeightClass 5
font ./LucidaBrightDemiItalic.ttf: unknown usWeightClass 5
font ./LucidaSansRegular.ttf: unknown usWeightClass 5
font ./LucidaBrightRegular.ttf: unknown usWeightClass 5
font ./LucidaTypewriterBold.ttf: unknown usWeightClass 6
font ./LucidaBrightDemiBold.ttf: unknown usWeightClass 6
superlinux:/tmp/test/fonts #

superlinux:/tmp/test/fonts # rm Lucida*
superlinux:/tmp/test/fonts # ls
.             Thonbi__.ttf  ansbi___.ttf  cumbbc.ttf    ims_i.ttf     shef_bd.ttf   thornicp.ttf
..            Thonburi.ttf  ansi____.ttf  cumbbic.ttf   is______.ttf  shef_it.ttf   thornzcp.ttf
Court___.ttf  Thoni___.ttf  arialn.ttf    cumbc.ttf     kidpr.ttf     shef_rg.ttf   timrom.ttf
Courtb__.ttf  albanybc.ttf  arialnb.ttf   cumbic.ttf    kidprbol.ttf  soui.ttf      tt1173m_.ttf
Courtbi_.ttf  albanyc.ttf   arialnbi.ttf  cyrvetic.ttf  nasaliza.ttf  starbats.ttf
Courti__.ttf  albanyic.ttf  arialni.ttf   gara_bd.ttf   opens___.ttf  starmath.ttf
Devamt.ttf    albanyzc.ttf  ariblk.ttf    gara_bdi.ttf  palscr.ttf    starsymb.ttf
Devamtb.ttf   ans_____.ttf  broad.ttf     gara_i.ttf    pascsb.ttf    thornbcp.ttf
Thonb___.ttf  ansb____.ttf  crystal.ttf   gara_r.ttf    primer.ttf    thorncp.ttf
superlinux:/tmp/test/fonts #

superlinux:/tmp/test/fonts # ttmkfdir > fonts.dir-test
superlinux:/tmp/test/fonts #

superlinux:/usr/X11R6/lib/X11/fonts/truetype # mv fonts.dir fonts.dir.bak
superlinux:/usr/X11R6/lib/X11/fonts/truetype #

superlinux:/tmp/test/fonts # ttmkfdir > /usr/X11R6/lib/X11/fonts/truetype/fonts.dir
superlinux:/tmp/test/fonts #

restart xserver...

timon@superlinux:~/tmp/install> ./setup
glibc version: 2.2.4
timon@superlinux:~/tmp/install>

no difference here.