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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - define (or undef) defined behaves stupidly"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=94188#c2">Comment # 2</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - define (or undef) defined behaves stupidly"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=94188">bug 94188</a>
              from <span class="vcard"><a class="email" href="mailto:kenneth@whitecape.org" title="Kenneth Graunke <kenneth@whitecape.org>"> <span class="fn">Kenneth Graunke</span></a>
</span></b>
        <pre>I posted a patch to disallow this on mesa-dev:
<a href="https://lists.freedesktop.org/archives/mesa-dev/2016-February/108008.html">https://lists.freedesktop.org/archives/mesa-dev/2016-February/108008.html</a>

Given that GCC, Clang, and now glslang disallow it, it seems pretty clear what
the right behavior ought to be.  Nothing good can come from making this work.</pre>
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