boost 1.40.0 +universal build fails on Snow Leopard

[blakharaz@…]

I wanted to build boost for both 32bit and 64bit, but the build fails with the error

--->  Building boost
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_devel_boost/work/boost_1_40_0" && bjam -j2 -d2 --layout=tagged --debug-configuration --ignore-site-config --user-config=user-config.jam --without-python --without-mpi -sBZIP2_INCLUDE=/opt/local/include -sBZIP2_LIBPATH=/opt/local/lib -sZLIB_INCLUDE=/opt/local/include -sZLIB_LIBPATH=/opt/local/lib architecture=x86 address-model=32_64 " returned error 1
Command output: lipo: /var/tmp//ccjstpEy.out and /var/tmp//cc3dMZ8C.out have the same architectures (x86_64) and can't be in the same fat output file
...failed darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/token_ids.o...
darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/wave_config_constant.o

    "/usr/bin/g++-4.2"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -arch i386 -arch x86_64 -m64  -DBOOST_ALL_NO_LIB=1 -DNDEBUG  -I"." -c -o "bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/wave_config_constant.o" "libs/wave/src/wave_config_constant.cpp"

lipo: /var/tmp//cc5GRoAa.out and /var/tmp//cccShCx4.out have the same architectures (x86_64) and can't be in the same fat output file
...failed darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/wave_config_constant.o...
darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/aq.o

    "/usr/bin/g++-4.2"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -arch i386 -arch x86_64 -m64  -DBOOST_ALL_NO_LIB=1 -DNDEBUG  -I"." -c -o "bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/aq.o" "libs/wave/src/cpplexer/re2clex/aq.cpp"

lipo: /var/tmp//cczeDfyu.out and /var/tmp//cchFEdEO.out have the same architectures (x86_64) and can't be in the same fat output file
...failed darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/aq.o...
darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/instantiate_re2c_lexer_str.o

    "/usr/bin/g++-4.2"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -Wall -no-cpp-precomp -gdwarf-2 -arch i386 -arch x86_64 -m64  -DBOOST_ALL_NO_LIB=1 -DNDEBUG  -I"." -c -o "bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/instantiate_re2c_lexer_str.o" "libs/wave/src/instantiate_re2c_lexer_str.cpp"

lipo: /var/tmp//ccvNF8h9.out and /var/tmp//ccSLZ03L.out have the same architectures (x86_64) and can't be in the same fat output file
...failed darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/instantiate_re2c_lexer_str.o...
darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/cpp_re.o

    "/usr/bin/g++-4.2"  -ftemplate-depth-128 -O3 -finline-functions -Wno-inline -w -no-cpp-precomp -gdwarf-2 -arch i386 -arch x86_64 -m64  -DBOOST_ALL_NO_LIB=1 -DNDEBUG  -I"." -c -o "bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/cpp_re.o" "libs/wave/src/cpplexer/re2clex/cpp_re.cpp"

lipo: /var/tmp//cc0C1Ip9.out and /var/tmp//ccCBTh1t.out have the same architectures (x86_64) and can't be in the same fat output file
...failed darwin.compile.c++ bin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi/cpplexer/re2clex/cpp_re.o...
...skipped <pbin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi>libboost_wave-mt.a for lack of <pbin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi>instantiate_cpp_exprgrammar.o...
...skipped <pstage/lib>libboost_wave-mt.a for lack of <pbin.v2/libs/wave/build/darwin-4.2.1/release/address-model-32_64/architecture-x86/link-static/threading-multi>libboost_wave-mt.a...
...failed updating 233 targets...
...skipped 338 targets...