<html>
    <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 --- - clang-cl: /link option in @response file should only consume args until end of current line"
   href="http://llvm.org/bugs/show_bug.cgi?id=17239">17239</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>clang-cl: /link option in @response file should only consume args until end of current line
          </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>Windows NT
          </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>Driver
          </td>
        </tr>

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

        <tr>
          <th>Reporter</th>
          <td>hans@chromium.org
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>llvmbugs@cs.uiuc.edu
          </td>
        </tr>

        <tr>
          <th>Blocks</th>
          <td>13707
          </td>
        </tr>

        <tr>
          <th>Classification</th>
          <td>Unclassified
          </td>
        </tr></table>
      <p>
        <div>
        <pre>The '/link' command-line option takes the following arguments on the
command-line and passes them to the linker.

To be compatible with cl.exe, when /link occurs in a response file, it should
only capture arguments until the _end of the current line in that file_ -- not
until the end of the entire expanded command-line as clang-cl currently does.

This occurs in the wild in ninja files generated by cmake on windows. It will
generate a response file like

  @foo.rsp:
  foo.obj /link bar.lib baz.lib

And then invoke cl.exe:

  cl.exe <somecompilerflags> @foo.rsp /link <morelinkerflags>

When run with clang-cl, this results in the linker complaining about the second
/link argument, since we've just passed along everything since we saw the first
/link in the response file.

I found this mentioned here:
<a href="http://msdn.microsoft.com/en-us/library/ms925492.aspx">http://msdn.microsoft.com/en-us/library/ms925492.aspx</a>

Filing this mostly to keep track of it, probably not very high priority right
now.</pre>
        </div>
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