[plt-scheme] compiling from svn: undef'd symbol

I just did an svn up; cd src; make, and got the following error:

make mzschemecgc
mkdir -p  PLT_MzScheme.framework/Versions/4.1.0.1
gcc -o PLT_MzScheme.framework/Versions/4.1.0.1/PLT_MzScheme  -framework 
CoreFoundation -dynamiclib -all_load  libmzscheme.a libmzgc.a -ldl -lm 
-liconv
ld: Undefined symbols:
_scheme_init_place
/usr/bin/libtool: internal link edit command failed
make[4]: *** [PLT_MzScheme.framework/Versions/4.1.0.1/PLT_MzScheme] Error 1

Indeed it looks like _scheme_init_place is not defined in libmzscheme.a:

$ nm mzscheme/libmzscheme.a  | grep 'scheme_init_place'
          U _scheme_init_place

$ uname -a
Darwin david-van-horns-computer.local 8.10.1 Darwin Kernel Version 
8.10.1: Wed May 23 16:33:00 PDT 2007; root:xnu-792.22.5~1/RELEASE_I386 
i386 i386

Is this a bug or have I done something wrong?  Let me know if I can 
provide any further info.

David