<code class="literal">-D_GLIBCXX_CONCEPT_CHECKS</code>.
</p><p>
Please note that the checks are based on the requirements in the original
- C++ standard, some of which have changed in the upcoming C++0x revision.
+ C++ standard, some of which have changed in the new C++11 revision.
Additionally, some correct code might be rejected by the concept checks,
for example template argument types may need to be complete when used in
a template definition, rather than at the point of instantiation.