FTC_MAnager_Lookup_Size

I have just installed GNUstep, and I'd like to say how impressed I am 
with it... except that I cannot run any of the programs! Whenever I try 
to run a GNUstep app, I get the following error:

$openapp Ink

/opt/GNUstep/Local/Applications/Ink.app/Ink: symbol lookup error: 
/opt/GNUstep/System/Library/Bundles/libgnustep-back.bundle/./libgnustep-back: 
undefined symbol: FTC_Manager_Lookup_Size

I'm running Archlinux, and used the gnustep pacman repository to install 
gnustep. I have GSBoot.sh, gdnc, gpbs, gnustep_sndd, and gdomap linked 
to /etc/rc.d and running as daemons. The GSXBoot.sh daemon is in my 
.xinitrc file and GNUstep.sh gets sourced when I log on.

It's worth noting that I'm running zsh and commented out the 
zsh-specific lines in GNUstep.sh -- I couldn't source it otherwise. It 
doesn't seem to do any harm, the proper paths are added and export spits 
out all the GNUstep variables. I get the same lookup error using bash, 
so my shell doesn't seem to be the problem.

Any idea how to solve this problem? I'm really eager to try out some 
GNUstep applications.