diff -ruN fdm-1.9.orig/configure.ac fdm-1.9/configure.ac
--- fdm-1.9.orig/configure.ac	2015-06-05 20:30:34.000000000 +0200
+++ fdm-1.9/configure.ac	2019-06-04 13:41:51.686892288 +0200
@@ -83,7 +83,7 @@
 	AC_MSG_ERROR("libcrypto not found")
 fi
 AC_SEARCH_LIBS(
-	SSL_library_init,
+	SSL_SESSION_new,
 	[ssl],
 	found_libssl=yes,
 	found_libssl=no
diff -ruN fdm-1.9.orig/fdm.c fdm-1.9/fdm.c
--- fdm-1.9.orig/fdm.c	2015-09-14 16:40:25.000000000 +0200
+++ fdm-1.9/fdm.c	2019-06-04 13:44:42.559415945 +0200
@@ -717,8 +717,12 @@
 	}
 	conf.lock_file = lock;
 
+#if OPENSSL_VERSION_NUMBER < 0x10100000L
 	SSL_library_init();
 	SSL_load_error_strings();
+#else
+    OPENSSL_init_ssl(0, NULL);
+#endif
 
 	/* Filter account list. */
 	TAILQ_INIT(&actaq);