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    <head>
      <base href="http://llvm.org/bugs/" />
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW --- - attribute_deprecated_with_message enabled when [[deprecated]] is not available"
   href="http://llvm.org/bugs/show_bug.cgi?id=19242">19242</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>attribute_deprecated_with_message enabled when [[deprecated]] is not available
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>trunk
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>steveire@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Given:

  #if !defined(__clang__)
  #define __has_extension(x) 0
  #endif

  #if __has_extension(attribute_deprecated_with_message)
  #define DEPR_ATTR [[deprecated]]
  #else
  #define DEPR_ATTR
  #endif

  DEPR_ATTR void something();

stephen@hal:~/dev/src/playground/cpp{master}$ g++ -c deprecated.cpp 
stephen@hal:~/dev/src/playground/cpp{master}$ clang++ -c deprecated.cpp 
deprecated.cpp:12:1: error: expected unqualified-id
DEPR_ATTR void something();
^
deprecated.cpp:7:19: note: expanded from macro 'DEPR_ATTR'
#define DEPR_ATTR [[deprecated]]
                  ^
deprecated.cpp:12:1: error: expected expression
deprecated.cpp:7:20: note: expanded from macro 'DEPR_ATTR'
#define DEPR_ATTR [[deprecated]]
                   ^
2 errors generated.
stephen@hal:~/dev/src/playground/cpp{master}$ clang++ -std=c++11 -c
deprecated.cpp 
stephen@hal:~/dev/src/playground/cpp{master}$ clang++ --version
Ubuntu clang version 3.5.0-1~exp1 (trunk) (based on LLVM 3.5.0)
Target: x86_64-pc-linux-gnu
Thread model: posix</pre>
        </div>
      </p>
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