<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 - "version" include wreaks havoc on case-insensitive filesystems"
   href="https://bugs.llvm.org/show_bug.cgi?id=42540">42540</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>"version" include wreaks havoc on case-insensitive filesystems
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>libc++
          </td>
        </tr>

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

        <tr>
          <th>Hardware</th>
          <td>All
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>All
          </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>All Bugs
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>quentin@mit.edu
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
          </td>
        </tr></table>
      <p>
        <div>
        <pre>- libc++ >= 7.0 has an include file called `version` (as part of C++20)
- Many open source packages contain a file called `VERSION` (this is a standard
file in autoconf-based distributions)
- On a case-insensitive filesystem, #include <version> finds `VERSION` and
hilarity ensues.

I'm really not sure what the best fix would be. Asking thousands of open-source
projects to rename their `VERSION` files seems like a huge challenge. Asking
clang to be case-sensitive even when the underlying filesystem is not seems
like a non-starter. libc++ could at least not having any includes of <version>
within the standard library itself, but that just postpones the pain until it
starts being included in other libraries.

Is it too late to raise this as a standards issue?</pre>
        </div>
      </p>


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