While gentoo is not solaris 8, are there any packages for which setting __cplusplus to 199711L would break compiles?
If there isn't, I'm going to hack the patches for 1773 together and include it on the bugzilla as a backport from gcc 4.7.0 so that it could become part of the gcc-gentoo patchset for 4. Also, the C++11 __cplusplus revision for gcc-4.5, gcc-4.6. (4.4's c++0x is rather incomplete; 4.5 and 4.6 are better, because it's closer to somewhat-ish instead of partial. -- m0shbear