<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - `llvm-config --cxxflags` does not include the C++ standard on Windows"
   href="https://bugs.llvm.org/show_bug.cgi?id=44840">44840</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>`llvm-config --cxxflags` does not include the C++ standard on Windows
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>new-bugs
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

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

        <tr>
          <th>OS</th>
          <td>Windows NT
          </td>
        </tr>

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

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

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

        <tr>
          <th>Component</th>
          <td>new bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>dmajor@mozilla.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>compnerd@compnerd.org, htmldeveloper@gmail.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Linux, 10.0.0 release candidate branch:

$ llvm-config --cxxflags
-I/home/vm/src/llvm.install/include -std=c++14   -fno-exceptions -fno-rtti
-D_GNU_SOURCE -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS
-D__STDC_LIMIT_MACROS

Windows, 10.0.0 release candidate branch:

e:\llvm.out\bin>llvm-config.exe --cxxflags
-IE:\llvm-project\llvm\include -IE:\llvm.out\include    /EHs-c- /GR-
-D_CRT_SECURE_NO_DEPRECATE -D_CRT_SECURE_NO_WARNINGS
-D_CRT_NONSTDC_NO_DEPRECATE -D_CRT_NONSTDC_NO_WARNINGS
-D_SCL_SECURE_NO_DEPRECATE -D_SCL_SECURE_NO_WARNINGS -DUNICODE -D_UNICODE
-D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS

Note the missing `-std=c++14` on Windows.

+compnerd because
<a href="https://github.com/llvm/llvm-project/commit/7a25de6d2073f77ea1a0d8f4cd715bec55678941">https://github.com/llvm/llvm-project/commit/7a25de6d2073f77ea1a0d8f4cd715bec55678941</a>
looks like it was trying to solve a similar problem, it seems not to have
worked on Windows though.</pre>
        </div>
      </p>


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