[v3] c++0x <system_error> CD updates

[DJ Delorie]

In file included from /sata/dj/gnu/gcc/m32c-elf/m32c-elf/libstdc++-v3/include/system_error:44,
                 from /sata/dj/gnu/gcc/gcc/libstdc++-v3/src/functexcept.cc:32:
/sata/dj/gnu/gcc/m32c-elf/m32c-elf/libstdc++-v3/include/m32c-elf/bits/error_constants.h:45: error: invalid type in declaration before '{' token
/sata/dj/gnu/gcc/m32c-elf/m32c-elf/libstdc++-v3/include/m32c-elf/bits/error_constants.h:46: error: 'address_family_not_supported' was not declared in this scope

(it goes down hill from there)