<html>
    <head>
      <base href="http://llvm.org/bugs/" />
    </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 --- - clang emits <stdin> pseudo-filename in dependency files"
   href="http://llvm.org/bugs/show_bug.cgi?id=21362">21362</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang emits <stdin> pseudo-filename in dependency files
          </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>Frontend
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>roland@hack.frob.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>dschuff@google.com, kcc@google.com, llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>When generating dependency files, only actual file names should be emitted.
Clang emits the "<stdin>" token in dependency files when compiling "-x c -".
That non-filename should only be used in error messages, not in places where an
actual file name is mandatory.

clang version 3.6.0 (218707)
Target: x86_64-unknown-linux-gnu

$ echo 'void foo (void) {}' | clang -c -o foo.o -x c - -MD -MP -MF foo.o.d -MT
foo.o
$ cat foo.o.d
foo.o: <stdin>
$ echo 'void foo (void) {}' | gcc -c -o foo.o -x c - -MD -MP -MF foo.o.d -MT
foo.o
$ cat foo.o.d
foo.o:  /usr/include/stdc-predef.h

/usr/include/stdc-predef.h:
$</pre>
        </div>
      </p>
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