Something

 /Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/cc1 -quiet -v -I. -I. -I../../../llvm-gcc-4.0-iphone/gcc -I../../../llvm-gcc-4.0-iphone/gcc/. -I../../../llvm-gcc-4.0-iphone/gcc/../include -I../../../llvm-gcc-4.0-iphone/gcc/../libcpp/include -I/Users/mewse/toolchain/llvm-svn/include -I/Users/mewse/toolchain/llvm-svn/include -iprefix /Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/../lib/gcc/arm-apple-darwin/4.0.1/ -isystem /Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/include -D__DYNAMIC__ -DIN_GCC -isystem /usr/local/arm-apple-darwin/include -isystem /usr/local/arm-apple-darwin/sys-include -isystem ./include ../../../llvm-gcc-4.0-iphone/gcc/config/darwin-crt3.c -fPIC -mfpu=vfp -mcpu=arm1176jzf-s -quiet -dumpbase darwin-crt3.c -mmacosx-version-min=10.4 -auxbase-strip crt3.o -W -Wall -Wwrite-strings -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -version -o /var/tmp//cclMuLY0.s
ignoring nonexistent directory "/usr/local/arm-apple-darwin/sys-include"
ignoring duplicate directory "./include"
ignoring nonexistent directory "/Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/../lib/gcc/arm-apple-darwin/4.0.1/include"
ignoring nonexistent directory "/Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/../lib/gcc/arm-apple-darwin/4.0.1/../../../../arm-apple-darwin/include"
ignoring duplicate directory "/usr/local/lib/gcc/arm-apple-darwin/4.0.1/../../../../arm-apple-darwin/include"
ignoring duplicate directory "."
ignoring duplicate directory "../../../llvm-gcc-4.0-iphone/gcc/."
ignoring duplicate directory "/Users/mewse/toolchain/llvm-svn/include"
#include "..." search starts here:
#include <...> search starts here:
 .
 ../../../llvm-gcc-4.0-iphone/gcc
 ../../../llvm-gcc-4.0-iphone/gcc/../include
 ../../../llvm-gcc-4.0-iphone/gcc/../libcpp/include
 /Users/mewse/toolchain/llvm-svn/include
 /Users/mewse/toolchain/iphone-dev/build/llvm-gcc-4.0-iphone/gcc/include
 /usr/local/arm-apple-darwin/include
 /usr/local/include
 /usr/local/lib/gcc/arm-apple-darwin/4.0.1/include
 /usr/include
 /System/Library/Frameworks (framework directory)
 /Library/Frameworks (framework directory)
End of search list.
GNU C version 4.0.1 (Apple Computer, Inc. build 5449)(LLVM build 2.0-svn-iphone-dev-0.3-svn) (arm-apple-darwin)
        compiled by GNU C version 4.0.1 (Apple Computer, Inc. build 5367).
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 7a6930b88f6c9b51bb3bb6cbb7d78bfb
 -arch arm -force_cpusubtype_ALL -o crt3.o /var/tmp//cclMuLY0.s
xgcc: installation problem, cannot exec '-arch': No such file or directory