www tweaks to embiggen up our near-complete C++11 and C11 support.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176781 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/www/compatibility.html b/www/compatibility.html
index de864ed..8bfaff1 100644
--- a/www/compatibility.html
+++ b/www/compatibility.html
@@ -19,10 +19,10 @@
 <h1>Language Compatibility</h1>
 <!-- ======================================================================= -->
 
-<p>Clang strives to both conform to current language standards (C99,
-  C++98) and also to implement many widely-used extensions available
+<p>Clang strives to both conform to current language standards (up to C11
+  and C++11) and also to implement many widely-used extensions available
   in other compilers, so that most correct code will "just work" when
-  compiler with Clang. However, Clang is more strict than other
+  compiled with Clang. However, Clang is more strict than other
   popular compilers, and may reject incorrect code that other
   compilers allow. This page documents common compatibility and
   portability issues with Clang to help you understand and fix the
diff --git a/www/cxx_status.html b/www/cxx_status.html
index 1c23ff3..f063ca9 100644
--- a/www/cxx_status.html
+++ b/www/cxx_status.html
@@ -38,9 +38,11 @@
 
   <p>Clang provides support for a number of features included in the new <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=50372">ISO C++ Standard, ISO/IEC 14882:2011</a>. The following table describes which C++11 features have been implemented in Clang and in which Clang versions they became available.</p>
 
-<p>You can use Clang in C++11 mode either
-with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++.
-Patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
+<p>By default, Clang builds C++ code according to the C++98 standard, with many
+C++11 features accepted as extensions. You can use Clang in C++11 mode with the
+<code>-std=c++11</code> option. Clang's C++11 mode can be used
+with <a href="http://libcxx.llvm.org/">libc++</a> or with gcc's libstdc++, but
+patches are needed to make <a href="libstdc++4.4-clang0x.patch">libstdc++-4.4</a>
 work with Clang in C++11 mode. Patches are also needed to make
 <a href="libstdc++4.6-clang11.patch">libstdc++-4.6</a>,
 and <a href="libstdc++4.7-clang11.patch">libstdc++-4.7</a> work with Clang