[plt-scheme] mzscheme v371 build failure on OS X 10.3

On

Darwin Buster.local 7.9.0 Darwin Kernel Version 7.9.0: Wed Mar 30 20:11:17 PST 2005; root:xnu/xnu-517.12.7.obj~1/RELEASE_PPC  Power Macintosh powerpc

Executive summary: a clean build failed with

ld: /usr/lib/gcc/darwin/3.3/libgcc.a(_fixunssfdi.o) illegal reference to symbol: ___cmpdi2 defined in indirectly referenced dynamic library /usr/lib/libgcc_s.1.dylib

Here's the complete log:

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-- 
A hacker would consider being asked to write
        add x to y giving z
instead of
        z = x+y
as something between an insult to his intelligence and a sin against God.
        -- Paul Graham (http://paulgraham.com/popular.html)