Fix openssl library name
--- configure.ac.orig	2021-09-12 11:12:41 UTC
+++ configure.ac
@@ -503,7 +502,7 @@ AS_IF([test "$with_ssl" = "openssl" || (test "$with_ss
     CFLAGS="$OPENSSL_CFLAGS $CFLAGS"
     AC_DEFINE([WITH_OPENSSL], [1], [Use OpenSSL])
   ], [
-    AC_SEARCH_LIBS(SSL_CTX_new, openssl,
+    AC_SEARCH_LIBS(SSL_CTX_new, ssl,
       [with_openssl=yes; AC_DEFINE([WITH_OPENSSL], [1], [Use OpenSSL])],
       [AC_MSG_WARN(*** OpenSSL was not found.)
     ])