le() then call SSL_CTX_build_cert_chain() with the option <b>SSL_BUILD_CHAIN_FLAG_CHECK</b> to check and reorder them.</p>

<p>Applications can issue non fatal warnings when checking chains by setting the flag <b>SSL_BUILD_CHAIN_FLAG_IGNORE_ERRORS</b> and checking the return value.</p>

<p>Calling SSL_CTX_build_cert_chain() or SSL_build_cert_chain() is more efficient than the automatic chain building as it is only performed once. Automatic chain building is performed on each new session.</p>

<p>If any cert