This actually looks like a bug in boost when compiled with GCC4.8. I recently upgraded to 13.10 (desktop) and started having this exact same issue. Sure enough...
acron@####:~$ g++ --version
g++ (Ubuntu/Linaro 4.8.1-10ubuntu9) 4.8.1
Googled around a bit and found this:
https://svn.boost.org/trac/boost/ticket/7242
Easy fix is to compile with -Wno-unused-local-typedefs
, which you can add to the scons file.