<html>
    <head>
      <base href="https://bugs.freedesktop.org/" />
    </head>
    <body><span class="vcard"><a class="email" href="mailto:jfonseca@vmware.com" title="Jose Fonseca <jfonseca@vmware.com>"> <span class="fn">Jose Fonseca</span></a>
</span> changed
              <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - rounding.h:102:2: error: #error "Unsupported or undefined LONG_BIT""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91591">bug 91591</a>
          <br>
             <table border="1" cellspacing="0" cellpadding="8">
          <tr>
            <th>What</th>
            <th>Removed</th>
            <th>Added</th>
          </tr>

         <tr>
           <td style="text-align:right;">Assignee</td>
           <td>mesa-dev@lists.freedesktop.org
           </td>
           <td>mattst88@gmail.com
           </td>
         </tr></table>
      <p>
        <div>
            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - rounding.h:102:2: error: #error "Unsupported or undefined LONG_BIT""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91591#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - rounding.h:102:2: error: #error "Unsupported or undefined LONG_BIT""
   href="https://bugs.freedesktop.org/show_bug.cgi?id=91591">bug 91591</a>
              from <span class="vcard"><a class="email" href="mailto:jfonseca@vmware.com" title="Jose Fonseca <jfonseca@vmware.com>"> <span class="fn">Jose Fonseca</span></a>
</span></b>
        <pre>My change only makes an existing bug surface.

Even without my change I believe the warning 

  rounding.h:107:1: warning: no return statement in function returning non-void
[-Wreturn-type]

was probably there, ever since Matt's commit
<a href="http://cgit.freedesktop.org/mesa/mesa/commit/?id=680de24545d23d0c2b699020267ca484f81a04a9">http://cgit.freedesktop.org/mesa/mesa/commit/?id=680de24545d23d0c2b699020267ca484f81a04a9</a>
.  But because it was not fatal, it was easy to miss.



As I said to Matt on mesa-dev ML, it sounds like LONG_BIT is not standard. 
MinGW/MSVC at least don't define it.  It looks like not all Linux define it
neither. 

There was a discussion about on Stack Overflow, but is not very conclusive.


On my system, LONG_BIT is defined in 

  /usr/include/x86_64-linux-gnu/bits/xopen_lim.h

And /usr/include/limits.h includes it, but not unconditionally:

  #ifdef    __USE_XOPEN
  # include <bits/xopen_lim.h>
  #endif</pre>
        </div>
      </p>
      <hr>
      <span>You are receiving this mail because:</span>
      
      <ul>
          <li>You are the QA Contact for the bug.</li>
          <li>You are the assignee for the bug.</li>
      </ul>
    </body>
</html>