misc/66941: Unacceptable stringstream performance

[Jonathan Wakely]

My apologies, it seems that sstream header *was* included in the
official 2.95.3 release (I had been assured otherwise) but the fact
remains that the upstream sources will not be fixed since the GCC 2.95
branch is inactive

http://savannah.gnu.org/cgi-bin/viewcvs/gcc/gcc/libstdc%2B%2B/Attic/sstream?only_with_tag=gcc-2_95_3&hideattic=1&search=None