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<a href="https://gitlab.com/ffontaine">Fabrice Fontaine</a>
<a href="https://gitlab.com/gnutls/gnutls/-/issues/1330#note_863539390">commented</a>:
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<p dir="auto">Unfortunately, turning <code>gnutls_static_mutex_lock</code> into a macro doesn't fix the issue. <code>lock</code> will still be undefined. Indeed, the issue is due to <code>GNUTLS_STATIC_MUTEX</code>, not <code>gnutls_static_mutex_lock</code>. It should be noted that the same build failure is raised with <code>gnutls_rwlock_rdlock</code>:</p>
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<pre class="code highlight js-syntax-highlight language-plaintext" lang="plaintext" v-pre="true" style="border-radius: 2px; margin: 0 0 8px; padding: 8px 12px; border: 1px solid #dbdbdb;"><code><span id="LC1" class="line" lang="plaintext">priority.c: In function '_gnutls_update_system_priorities':</span>
<span id="LC2" class="line" lang="plaintext">priority.c:1857:30: error: 'system_wide_config_rwlock' undeclared (first use in this function); did you mean 'system_wide_config'?</span>
<span id="LC3" class="line" lang="plaintext"> 1857 | ret = gnutls_rwlock_rdlock(&system_wide_config_rwlock);</span>
<span id="LC4" class="line" lang="plaintext"> | ^~~~~~~~~~~~~~~~~~~~~~~~~</span>
<span id="LC5" class="line" lang="plaintext"> | system_wide_config</span></code></pre>
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<p dir="auto">A possible workaround is to guard all mutexes (i.e. <code>file_mutex</code>, <code>global_init_mutex</code>, <code>keylog_mutex</code>, <code>gnutls_rnd_ctx_list_mutex</code> and <code>system_wide_config_rwlock</code>) by <code>ifdef HAVE_PTHREAD_MUTEX_LOCK</code>. I can send a MR if this is acceptable. An other option is to disable gnutls on toolchains without threads.</p>
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