[Bug c++/52166] c++0x required to import standard c++ headers?

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52166

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2012-02-08 10:58:16 UTC ---
N.B. if we enabled <cstdint> in C++03 mode users would (rightly) complain that
it makes it harder to write portable programs, and it would be a problem for
autoconf-style tests which check for the existence of <cstdint> to determine
whether a C++11 compiler is being used.