Problems building 8.2beta1 on macos G5 xserve

Trying to build 8.2beta1 on MacOS G5 Xserver, OS version 10.4.7.  I got 
this:


....
gcc -no-cpp-precomp -O2 -Wall -Wmissing-prototypes -Wpointer-arith 
-Winline -Wendif-labels -fno-strict-aliasing   -dynamiclib -install_name 
/usr/local/pgsql/lib/libpq.5.dylib -compatibility_version 5 
-current_version 5.0 -exported_symbols_list exports.list 
-multiply_defined suppress  fe-auth.o fe-connect.o fe-exec.o fe-misc.o 
fe-print.o fe-lobj.o fe-protocol2.o fe-protocol3.o pqexpbuffer.o 
pqsignal.o fe-secure.o md5.o ip.o wchar.o encnames.o noblock.o 
pgstrcasecmp.o thread.o   -L../../../src/port -L/sw/lib   -o libpq.5.0.dylib
/usr/bin/libtool: for architecture: cputype (16777234) cpusubtype (0) 
file: -lSystem is not an object file (not allowed in a library)
make[3]: *** [libpq.5.0.dylib] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all] Error 2
make: *** [all] Error 2

% uname -a
Darwin Sherlock 8.7.0 Darwin Kernel Version 8.7.0: Fri May 26 15:20:53 
PDT 2006; root:xnu-792.6.76.obj~1/RELEASE_PPC Power Macintosh powerpc

Any suggestions?

Thanks,
Sean