I have fixed your WikiFormatting.
The main.log you linked to on Dropbox was made building with clang. As you said, it fails with:
newlib/libc/machine/arm/setjmp.S:83:26: pasting "_" and "\" does not give a valid preprocessing token
The main.log you attached to this ticket was made with llvm-gcc-4.2. It fails with:
:info:build mkdir libgcc
:info:build if [ -f stmp-dirs ]; then true; else touch stmp-dirs; fi
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_udivsi3 -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_udivsi3.o
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_divsi3 -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_divsi3.o
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_umodsi3 -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_umodsi3.o
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_modsi3 -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_modsi3.o
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_dvmd_tls -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_dvmd_tls.o
:info:build /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/xgcc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/gcc/ -nostdinc -B/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/ -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/build/arm-aout/newlib/targ-include -isystem /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/newlib/libc/include -B/opt/local/arm-aout/bin/ -B/opt/local/arm-aout/lib/ -isystem /opt/local/arm-aout/include -O2 -DIN_GCC -DCROSS_COMPILE -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -isystem ./include -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/. -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/../include -DL_call_via_rX -xassembler-with-cpp -c /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_cross_arm-aout-gcc/arm-aout-gcc/work/gcc-3.3.6/gcc/config/arm/lib1funcs.asm -o libgcc/./_call_via_rX.o
:info:build cc1: internal compiler error: Segmentation fault: 11
:info:build Please submit a full bug report,
:info:build with preprocessed source if appropriate.
:info:build See <URL:http://gcc.gnu.org/bugs.html> for instructions.
:info:build make[2]: *** [libgcc/./_udivsi3.o] Error 1
:info:build make[2]: *** Waiting for unfinished jobs....
You could follow those instructions and report the bug to the developers of gcc, however this is gcc version 3.3.6, which is ancient in the extreme and the developers are undoubtedly no longer fixing bugs in it. We probably need to update this port to a much newer version.
Something you could try first is upgrading to the latest version of Xcode for Lion. You said you're on Xcode 4.2; 4.3.3 has been available for a month already. You can get it from the Mac App Store or Apple Developer Connection.
In any case there is no maintainer for this port in MacPorts so you're on your own in figuring out how to fix it. If you develop a patch for the Portfile that makes it work, please share it with us.
