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Issue created by <a href="https://gitlab.com/cybear">Bjørn Christensen</a>: <a href="https://gitlab.com/gnutls/gnutls/-/work_items/1889">#1889</a>
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<h2 id="user-content-description-of-problem" dir="auto" style="margin-top: 0px; margin-bottom: 10px;" align="initial">Description of problem:<a href="#description-of-problem" aria-label="Link to heading 'Description of problem:'" data-heading-content="Description of problem:" class="anchor" style="margin-top: 0px;"></a>
</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Problems building GnuTLS on mac platform.
The code in crau.h seems to have a logic error, lines 253-261</p>
<h1 id="user-content-ifndef-crau_maybe_unused" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">ifndef CRAU_MAYBE_UNUSED<a href="#ifndef-crau_maybe_unused" aria-label="Link to heading 'ifndef CRAU_MAYBE_UNUSED'" data-heading-content="ifndef CRAU_MAYBE_UNUSED" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-if-defined__has_c_attribute" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">if defined(__has_c_attribute)<a href="#if-defined__has_c_attribute" aria-label="Link to heading 'if defined(__has_c_attribute)'" data-heading-content="if defined(__has_c_attribute)" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-if-__has_c_attribute-maybe_unused" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">if __has_c_attribute (<strong style="font-weight: 600; margin-top: 0px;">maybe_unused</strong>)<a href="#if-__has_c_attribute-maybe_unused" aria-label="Link to heading 'if __has_c_attribute (maybe_unused)'" data-heading-content="if __has_c_attribute (maybe_unused)" class="anchor"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused-__maybe_unused__" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED <a href="https://gitlab.com/gnutls/gnutls/-/wikis/__maybe_unused__" data-wikilink="true" class="gfm gfm-gollum-wiki-page" data-canonical-src="__maybe_unused__" data-link="true" data-gollum="true" data-reference-type="wiki_page" data-project="179611" style="margin-top: 0px;">__maybe_unused__</a><a href="#define-crau_maybe_unused-__maybe_unused__" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED __maybe_unused__'" data-heading-content="define CRAU_MAYBE_UNUSED __maybe_unused__" class="anchor"></a>
</h1>
<h1 id="user-content-endif" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif<a href="#endif" aria-label="Link to heading 'endif'" data-heading-content="endif" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-elif-definedgnuc" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">elif defined(<strong style="font-weight: 600; margin-top: 0px;">GNUC</strong>)<a href="#elif-definedgnuc" aria-label="Link to heading 'elif defined(GNUC)'" data-heading-content="elif defined(GNUC)" class="anchor"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused-attributeunused" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED <strong style="font-weight: 600; margin-top: 0px;">attribute</strong>((<strong style="font-weight: 600;">unused</strong>))<a href="#define-crau_maybe_unused-attributeunused" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED attribute((unused))'" data-heading-content="define CRAU_MAYBE_UNUSED attribute((unused))" class="anchor"></a>
</h1>
<h1 id="user-content-endif-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif<a href="#endif-1" aria-label="Link to heading 'endif'" data-heading-content="endif" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-endif--crau_maybe_unused-" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif /* CRAU_MAYBE_UNUSED */<a href="#endif--crau_maybe_unused-" aria-label="Link to heading 'endif /* CRAU_MAYBE_UNUSED */'" data-heading-content="endif /* CRAU_MAYBE_UNUSED */" class="anchor" style="margin-top: 0px;"></a>
</h1>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">In my case when compiling, the code ends up without macro CRAU_MAYBE_UNUSED defined.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">that generates compiler errors for all the later uses.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">I have solved the problem by adding -DCRAU_MAYBE_UNUSED= to the compilation but is would be nice that the code defined an empty macro CRAU_MAYBE_UNUSED if it cannot provide an alternative for it.</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Could be:</p>
<h1 id="user-content-ifndef-crau_maybe_unused-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">ifndef CRAU_MAYBE_UNUSED<a href="#ifndef-crau_maybe_unused-1" aria-label="Link to heading 'ifndef CRAU_MAYBE_UNUSED'" data-heading-content="ifndef CRAU_MAYBE_UNUSED" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-if-defined__has_c_attribute-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">if defined(__has_c_attribute)<a href="#if-defined__has_c_attribute-1" aria-label="Link to heading 'if defined(__has_c_attribute)'" data-heading-content="if defined(__has_c_attribute)" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-if-__has_c_attribute-maybe_unused-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">if __has_c_attribute (<strong style="font-weight: 600; margin-top: 0px;">maybe_unused</strong>)<a href="#if-__has_c_attribute-maybe_unused-1" aria-label="Link to heading 'if __has_c_attribute (maybe_unused)'" data-heading-content="if __has_c_attribute (maybe_unused)" class="anchor"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused-__maybe_unused__-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED <a href="https://gitlab.com/gnutls/gnutls/-/wikis/__maybe_unused__" data-wikilink="true" class="gfm gfm-gollum-wiki-page" data-canonical-src="__maybe_unused__" data-link="true" data-gollum="true" data-reference-type="wiki_page" data-project="179611" style="margin-top: 0px;">__maybe_unused__</a><a href="#define-crau_maybe_unused-__maybe_unused__-1" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED __maybe_unused__'" data-heading-content="define CRAU_MAYBE_UNUSED __maybe_unused__" class="anchor"></a>
</h1>
<h1 id="user-content-else" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">else<a href="#else" aria-label="Link to heading 'else'" data-heading-content="else" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED<a href="#define-crau_maybe_unused" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED'" data-heading-content="define CRAU_MAYBE_UNUSED" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-endif-2" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif<a href="#endif-2" aria-label="Link to heading 'endif'" data-heading-content="endif" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-elif-definedgnuc-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">elif defined(<strong style="font-weight: 600; margin-top: 0px;">GNUC</strong>)<a href="#elif-definedgnuc-1" aria-label="Link to heading 'elif defined(GNUC)'" data-heading-content="elif defined(GNUC)" class="anchor"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused-attributeunused-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED <strong style="font-weight: 600; margin-top: 0px;">attribute</strong>((<strong style="font-weight: 600;">unused</strong>))<a href="#define-crau_maybe_unused-attributeunused-1" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED attribute((unused))'" data-heading-content="define CRAU_MAYBE_UNUSED attribute((unused))" class="anchor"></a>
</h1>
<h1 id="user-content-else-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">else<a href="#else-1" aria-label="Link to heading 'else'" data-heading-content="else" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-define-crau_maybe_unused-1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">define CRAU_MAYBE_UNUSED<a href="#define-crau_maybe_unused-1" aria-label="Link to heading 'define CRAU_MAYBE_UNUSED'" data-heading-content="define CRAU_MAYBE_UNUSED" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-endif-3" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif<a href="#endif-3" aria-label="Link to heading 'endif'" data-heading-content="endif" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h1 id="user-content-endif--crau_maybe_unused--1" dir="auto" style="margin-top: 2rem; margin-bottom: 1rem; font-weight: 600; font-size: 1.5rem; letter-spacing: -0.01em; line-height: 1.25; color: #18171d;" align="initial">endif /* CRAU_MAYBE_UNUSED */<a href="#endif--crau_maybe_unused--1" aria-label="Link to heading 'endif /* CRAU_MAYBE_UNUSED */'" data-heading-content="endif /* CRAU_MAYBE_UNUSED */" class="anchor" style="margin-top: 0px;"></a>
</h1>
<h2 id="user-content-version-of-gnutls-used" dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">Version of gnutls used:<a href="#version-of-gnutls-used" aria-label="Link to heading 'Version of gnutls used:'" data-heading-content="Version of gnutls used:" class="anchor" style="margin-top: 0px;"></a>
</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">3.8.13</p>
<h2 id="user-content-distributor-of-gnutls-eg-ubuntu-fedora-rhel" dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)<a href="#distributor-of-gnutls-eg-ubuntu-fedora-rhel" aria-label="Link to heading 'Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)'" data-heading-content="Distributor of gnutls (e.g., Ubuntu, Fedora, RHEL)" class="anchor" style="margin-top: 0px;"></a>
</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">sourcecode</p>
<h2 id="user-content-how-reproducible" dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">How reproducible:<a href="#how-reproducible" aria-label="Link to heading 'How reproducible:'" data-heading-content="How reproducible:" class="anchor" style="margin-top: 0px;"></a>
</h2>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">everytime</p>
<p dir="auto" style="color: #3a383f; margin: 0px 0px 1rem;" align="initial">Steps to Reproduce:</p>
<ul dir="auto" style="text-align: initial; list-style-type: disc; margin: 0px 0px 1rem; padding: 0;">
<li style="margin-top: 0px; line-height: 1.6em; margin-left: 25px; padding-left: 3px;">one</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">two</li>
<li style="line-height: 1.6em; margin-left: 25px; padding-left: 3px;">three</li>
</ul>
<h2 id="user-content-actual-results" dir="auto" style="margin-top: 20px; margin-bottom: 10px;" align="initial">Actual results:<a href="#actual-results" aria-label="Link to heading 'Actual results:'" data-heading-content="Actual results:" class="anchor" style="margin-top: 0px;"></a>
</h2>
<h2 id="user-content-expected-results" dir="auto" style="margin-top: 20px; margin-bottom: 0px;" align="initial">Expected results:<a href="#expected-results" aria-label="Link to heading 'Expected results:'" data-heading-content="Expected results:" class="anchor" style="margin-top: 0px;"></a>
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