diff -up dovecot-2.3.14/src/lib-dcrypt/dcrypt-openssl.c.opensslv3 dovecot-2.3.14/src/lib-dcrypt/dcrypt-openssl.c
--- dovecot-2.3.14/src/lib-dcrypt/dcrypt-openssl.c.opensslv3	2021-06-03 18:56:52.573174433 +0200
+++ dovecot-2.3.14/src/lib-dcrypt/dcrypt-openssl.c	2021-06-03 18:56:52.585174274 +0200
@@ -73,10 +73,30 @@
   2<tab>key algo oid<tab>1<tab>symmetric algo name<tab>salt<tab>hash algo<tab>rounds<tab>E(RSA = i2d_PrivateKey, EC=Private Point)<tab>key id
 **/
 
+#if OPENSSL_VERSION_MAJOR == 3
+static EC_KEY *EVP_PKEY_get0_EC_KEYv3(EVP_PKEY *key)
+{
+  EC_KEY *eck = EVP_PKEY_get1_EC_KEY(key);
+  EVP_PKEY_set1_EC_KEY(key, eck);
+  EC_KEY_free(eck);
+  return eck;
+}
+
+static EC_KEY *EVP_PKEY_get1_EC_KEYv3(EVP_PKEY *key)
+{
+  EC_KEY *eck = EVP_PKEY_get1_EC_KEY(key);
+  EVP_PKEY_set1_EC_KEY(key, eck);
+  return eck;
+}
+
+#define EVP_PKEY_get0_EC_KEY EVP_PKEY_get0_EC_KEYv3 
+#define EVP_PKEY_get1_EC_KEY EVP_PKEY_get1_EC_KEYv3
+#else
 #ifndef HAVE_EVP_PKEY_get0
 #define EVP_PKEY_get0_EC_KEY(x) x->pkey.ec
 #define EVP_PKEY_get0_RSA(x) x->pkey.rsa
 #endif
+#endif
 
 #ifndef HAVE_OBJ_LENGTH
 #define OBJ_length(o) ((o)->length)
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<tr><td><span title='2019-09-25 12:18:25 +0900'>2019-09-25</span></td><td><a href='/guix/commit/gnu/build/linux-initrd.scm?id=91e633f0430c8c26e6915f79365a49d8a4327c96'>build: initrd: Fix "write-cpio-archive" return value.</a><span class='msg-avail'>...</span></td><td>Maxim Cournoyer</td></tr>
<tr><td><span title='2018-11-21 23:26:59 +0100'>2018-11-21</span></td><td><a href='/guix/commit/gnu/build/linux-initrd.scm?id=d422cbb3d6a1cc7e4553a2335b113475a05d68ad'>linux-initrd: 'expression-&gt;initrd' returns the complete file name.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>
<tr><td><span title='2018-11-07 16:06:42 +0100'>2018-11-07</span></td><td><a href='/guix/commit/gnu/build/linux-initrd.scm?id=970c9993f124789cb181f399d4981cdcf5d3fc26'>linux-initrd: Make sure 'build-initrd' can delete files.</a><span class='msg-avail'>...</span></td><td>Ludovic Courtès</td></tr>