$OpenBSD: patch-configure,v 1.19 2018/05/29 14:25:11 sthen Exp $

https://www.dovecot.org/pipermail/dovecot/2018-March/111260.html

If this function is found, ssl_protocols_to_min_protocol is used to
convert ssl_protocols strings to min/max values, however that function
can't cope with strings containing "!SSLv2". Until fixed, just revert to
the traditional method which actually works.

Index: configure
--- configure.orig
+++ configure
@@ -22982,7 +22982,7 @@ fi
 $as_echo "$i_cv_have_ssl_ctx_set_min_proto_version" >&6; }
     if test $i_cv_have_ssl_ctx_set_min_proto_version = yes; then
 
-$as_echo "#define HAVE_SSL_CTX_SET_MIN_PROTO_VERSION /**/" >>confdefs.h
+$as_echo "/* #define HAVE_SSL_CTX_SET_MIN_PROTO_VERSION */" >>confdefs.h
 
     fi
 
