--- options.h | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/options.h b/options.h
index 8a51502..39ca68a 100644
--- a/options.h
+++ b/options.h
@@ -77,6 +77,9 @@ struct options_pre_pull
};
#endif
+#if !defined(USE_OPENSSL) && !defined(USE_POLARSSL)
+# error "At least on of OpenSSL or PolarSSL needs to be defined."
+#endif
struct connection_entry
{
--
1.7.4.1
