Index: newsbeuter-2.9/src/feedhq_api.cpp
===================================================================
--- newsbeuter-2.9.orig/src/feedhq_api.cpp
+++ newsbeuter-2.9/src/feedhq_api.cpp
@@ -132,7 +132,7 @@ std::vector<tagged_feedurl> feedhq_api::
 	// TODO: parse result
 
 	struct json_object * reply = json_tokener_parse(result.c_str());
-	if (is_error(reply)) {
+	if (reply == NULL) {
 		LOG(LOG_ERROR, "feedhq_api::get_subscribed_urls: failed to parse response as JSON.");
 		return urls;
 	}
Index: newsbeuter-2.9/src/oldreader_api.cpp
===================================================================
--- newsbeuter-2.9.orig/src/oldreader_api.cpp
+++ newsbeuter-2.9/src/oldreader_api.cpp
@@ -134,7 +134,7 @@ std::vector<tagged_feedurl> oldreader_ap
 	// TODO: parse result
 
 	struct json_object * reply = json_tokener_parse(result.c_str());
-	if (is_error(reply)) {
+	if (reply == NULL) {
 		LOG(LOG_ERROR, "oldreader_api::get_subscribed_urls: failed to parse response as JSON.");
 		return urls;
 	}
Index: newsbeuter-2.9/src/ttrss_api.cpp
===================================================================
--- newsbeuter-2.9.orig/src/ttrss_api.cpp
+++ newsbeuter-2.9/src/ttrss_api.cpp
@@ -113,19 +113,19 @@ struct json_object * ttrss_api::run_op(c
 	LOG(LOG_DEBUG, "ttrss_api::run_op(%s,...): post=%s reply = %s", op.c_str(), req_data.c_str(), result.c_str());
 
 	struct json_object * reply = json_tokener_parse(result.c_str());
-	if (is_error(reply)) {
+	if (reply == NULL) {
 		LOG(LOG_ERROR, "ttrss_api::run_op: reply failed to parse: %s", result.c_str());
 		return NULL;
 	}
 
 	struct json_object * status = json_object_object_get(reply, "status");
-	if (is_error(status)) {
+	if (status == NULL) {
 		LOG(LOG_ERROR, "ttrss_api::run_op: no status code");
 		return NULL;
 	}
 
 	struct json_object * content = json_object_object_get(reply, "content");
-	if (is_error(content)) {
+	if (content == NULL) {
 		LOG(LOG_ERROR, "ttrss_api::run_op: no content part in answer from server");
 		return NULL;
 	}