Detailed g++ output:

-8<-
$ /usr/bin/g++-4.5 -v -save-temps   -Wall -Wextra -std=gnu++0x -g -I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include -I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src   -o CMakeFiles/cupt.dir/src/system/state.cpp.o -c /home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src/system/state.cpp                                                                         
Using built-in specs.                                                                                                                                                                                          
COLLECT_GCC=/usr/bin/g++-4.5                                                                                                                                                                                   
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i486-linux-gnu/4.5.0/lto-wrapper                                                                                                                                              
Target: i486-linux-gnu                                                                                                                                                                                         
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Thread model: posix
gcc version 4.5.0 20100321 (experimental) [trunk revision 157602] (Debian 4.5-20100321-1)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-Wextra' '-std=gnu++0x' '-g' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src' '-o' 'CMakeFiles/cupt.dir/src/system/state.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=i486'
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ignoring nonexistent directory "/usr/local/include/i486-linux-gnu"
ignoring nonexistent directory "/usr/lib/gcc/i486-linux-gnu/4.5.0/../../../../i486-linux-gnu/include"
ignoring nonexistent directory "/usr/include/i486-linux-gnu"
#include "..." search starts here:
#include <...> search starts here:
 /home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include
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End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-Wextra' '-std=gnu++0x' '-g' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src' '-o' 'CMakeFiles/cupt.dir/src/system/state.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=i486'
 /usr/lib/gcc/i486-linux-gnu/4.5.0/cc1plus -fpreprocessed state.ii -quiet -dumpbase state.cpp -mtune=generic -march=i486 -auxbase-strip CMakeFiles/cupt.dir/src/system/state.cpp.o -g -Wall -Wextra -std=gnu++0x -version -o state.s
GNU C++ (Debian 4.5-20100321-1) version 4.5.0 20100321 (experimental) [trunk revision 157602] (i486-linux-gnu)
        compiled by GNU C version 4.5.0 20100321 (experimental) [trunk revision 157602], GMP version 4.3.2, MPFR version 2.4.2-p1, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++ (Debian 4.5-20100321-1) version 4.5.0 20100321 (experimental) [trunk revision 157602] (i486-linux-gnu)
        compiled by GNU C version 4.5.0 20100321 (experimental) [trunk revision 157602], GMP version 4.3.2, MPFR version 2.4.2-p1, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 9f8da535b0aaf549220a9b444fd36470
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-Wextra' '-std=gnu++0x' '-g' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src' '-o' 'CMakeFiles/cupt.dir/src/system/state.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=i486'
 as -V -Qy --32 -o CMakeFiles/cupt.dir/src/system/state.cpp.o state.s
GNU assembler version 2.20 (i486-linux-gnu) using BFD version (GNU Binutils for Debian) 2.20
COMPILER_PATH=/usr/lib/gcc/i486-linux-gnu/4.5.0/:/usr/lib/gcc/i486-linux-gnu/4.5.0/:/usr/lib/gcc/i486-linux-gnu/:/usr/lib/gcc/i486-linux-gnu/4.5.0/:/usr/lib/gcc/i486-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/i486-linux-gnu/4.5.0/:/usr/lib/gcc/i486-linux-gnu/4.5.0/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/i486-linux-gnu/4.5.0/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-Wall' '-Wextra' '-std=gnu++0x' '-g' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/include' '-I/home/jackyf/work/repos/cupt-git/cupt/cpp/lib/src' '-o' 'CMakeFiles/cupt.dir/src/system/state.cpp.o' '-c' '-shared-libgcc' '-mtune=generic' '-march=i486'
->8-

I was not able to make a simple testcase that triggers this ICE. Also, reordering headers in source file, e.g. placing the failed header upper can eliminate this ICE.

Preprocessed file will be attached in a moment.