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@@ -66,7 +66,8 @@
<code class="code">--enable-concept-checks</code>. When defined, performs
compile-time checking on certain template instantiations to
detect violations of the requirements of the standard. This
- is described in more detail in
+ macro has no effect for freestanding implementations.
+ This is described in more detail in
<a class="link" href="ext_compile_checks.html" title="Chapter 16. Compile Time Checks">Compile Time Checks</a>.
</p></dd><dt><span class="term"><code class="code">_GLIBCXX_ASSERTIONS</code></span></dt><dd><p>
Undefined by default. When defined, enables extra error checking in