Mention the PKCS12 feature is not available everywhere.

Signed-off-by: Otto Moerbeek <otto.moerbeek@open-xchange.com>

diff --git a/pdns/recursordist/rec-rust-lib/docs-new-preamble-in.rst b/pdns/recursordist/rec-rust-lib/docs-new-preamble-in.rst
index f1e0a1edb2e7c1249436ddf06406d5d74e418bcf..526ac0fe155eb472f7bdf01e263b72fbd747eb91 100644 (file)
--- a/pdns/recursordist/rec-rust-lib/docs-new-preamble-in.rst
+++ b/pdns/recursordist/rec-rust-lib/docs-new-preamble-in.rst
@@ -598,7 +598,8 @@ If a ``tls`` section is present, clients are required to use ``https`` to contac
 If both the ``certificate`` and the ``key`` fields are set, the values specify unencrypted PEM files.
 The ``password`` field is ignored in that case.
 
-Starting with version 5.5.0, if the ``key`` field is not set but the ``certificate`` and ``password`` fields are set, the listed file is assumed to be an encrypted PKCS12 (also known as pfx) file containing both a key and the certificate chain.
+If the ``key`` field is not set but the ``certificate`` and ``password`` fields are set, the listed file is assumed to be an encrypted PKCS12 (also known as pfx) file containing both a key and the certificate chain.
+The ``pkcs12`` feature is only available starting with version 5.5.0 and if the Rust build environment used is version 1.88 or higher.
 
 At the moment it is not possible to list additional properties of the TLS listener.