# fix spurious errors during startup
# Print detailed info in case of error.
#
# http://bugs.debian.org/794383
--- apache2.orig/modules/ssl/ssl_engine_init.c
+++ apache2/modules/ssl/ssl_engine_init.c
@@ -675,12 +675,14 @@ static void ssl_init_ctx_cert_chain(serv
         }
     }
 
+    ERR_clear_error();
     n = SSL_CTX_use_certificate_chain(mctx->ssl_ctx,
                                       (char *)chain,
                                       skip_first, NULL);
     if (n < 0) {
         ap_log_error(APLOG_MARK, APLOG_ERR, 0, s,
                 "Failed to configure CA certificate chain!");
+        ERR_print_errors_fp(stderr);
         ssl_die();
     }