<div dir="ltr">Hi all, <div>   I am on OS 10.9 Mavericks. I install gcc48 from macport. However, I got the follow error when I compile HelloWorld. What might go wrong? Thanks. </div><div><br></div><div>







<p class="">In file included from /opt/local/include/gcc48/c++/bits/postypes.h:40:0,</p>
<p class="">                 from /opt/local/include/gcc48/c++/iosfwd:40,</p>
<p class="">                 from /opt/local/include/gcc48/c++/ios:38,</p>
<p class="">                 from /opt/local/include/gcc48/c++/ostream:38,</p>
<p class="">                 from /opt/local/include/gcc48/c++/iostream:39,</p>
<p class="">                 from HelloWorld.cpp:5:</p>
<p class="">/opt/local/include/gcc48/c++/cwchar:44:19: fatal error: wchar.h: No such file or directory</p>
<p class=""> #include &lt;wchar.h&gt;</p>
<p class="">                   ^</p>
<p class="">compilation terminated.</p><p class=""><br></p><p class="">Shiyuan </p></div></div>