PostgreSQL failed to compile on MacOS X.1

Hi,

I just downloaded PostgreSQL in source form and tried to compile it on
my iMac DV (500Mhz, 256 Mb) with Mac OS X.1.

./configure went well, but gnumake ran for a while before having this
problem:

gnumake -C interfaces all
cc -traditional-cpp -g -O2 -Wall -Wmissing-prototypes
-Wmissing-declarations -bundle -undefined suppress -bundle -undefined
suppress fe-auth.o fe-connect.o fe-exec.o fe-misc.o fe-print.o fe-lobj.o
pqexpbuffer.o dllist.o pqsignal.o -o libpq.so.2.1
/usr/bin/ld: -undefined error must be used when -twolevel_namespace is
in effect
gnumake[3]: *** [libpq.so.2.1] Error 1
gnumake[2]: *** [all] Error 2
gnumake[1]: *** [all] Error 2
gnumake: *** [all] Error 2

What do I do next?

thanks
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"What you do instead of your real work *is* your real work."
- Roger Ebert
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