m4: Check for SSL_CIPHER_get_kx_nid

diff --git a/m4/ssl.m4 b/m4/ssl.m4
index e1716f67b8b8d40f6bcbed502479ac8f90aca968..e7d3db4ea2c9d9cec4cf4eaf637859b364ca51da 100644 (file)
--- a/m4/ssl.m4
+++ b/m4/ssl.m4
@@ -133,6 +133,10 @@ AC_DEFUN([DOVECOT_SSL], [
         AC_DEFINE(HAVE_SSL_CTX_SET_MIN_PROTO_VERSION,, [Define if you have SSL_CTX_set_min_proto_version])
       fi
 
+      AC_CHECK_LIB(ssl, SSL_CIPHER_get_kx_nid, [
+        AC_DEFINE(HAVE_SSL_CIPHER_get_kx_nid,, [Define if you have SSL_CIPHER_get_kx_nid])
+      ],, $SSL_LIBS)
+
       AC_CHECK_LIB(ssl, ERR_remove_thread_state, [
         AC_DEFINE(HAVE_OPENSSL_ERR_REMOVE_THREAD_STATE,, [Define if you have ERR_remove_thread_state])
       ],, $SSL_LIBS)