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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Compiler warning in cairo-gl.h undefined #if check"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88050#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Compiler warning in cairo-gl.h undefined #if check"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88050">bug 88050</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>This is not a bug, but correct cpp behaviour.
An undefined macro is evaluated as 0.
The preference is to use #if MACRO_NAME rather than #ifdef.</pre>
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