From d983161415f5f5748fbdbaa5fbd168154ccf8867 Mon Sep 17 00:00:00 2001
From: Zang Ruochen <zangrc.fnst@cn.fujitsu.com>
Date: Wed, 5 Aug 2020 12:31:24 +0900
Subject: [PATCH] Fix build with libmicrohttpd 0.9.71

---
 src/jsonrpccpp/server/connectors/httpserver.cpp | 2 +-
 src/jsonrpccpp/server/connectors/httpserver.h   | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/src/jsonrpccpp/server/connectors/httpserver.cpp b/src/jsonrpccpp/server/connectors/httpserver.cpp
index a849615..dd3b841 100644
--- a/src/jsonrpccpp/server/connectors/httpserver.cpp
+++ b/src/jsonrpccpp/server/connectors/httpserver.cpp
@@ -151,7 +151,7 @@ void HttpServer::SetUrlHandler(const string &url,
   this->SetHandler(NULL);
 }
 
-int HttpServer::callback(void *cls, MHD_Connection *connection, const char *url,
+mhd_result HttpServer::callback(void *cls, MHD_Connection *connection, const char *url,
                          const char *method, const char *version,
                          const char *upload_data, size_t *upload_data_size,
                          void **con_cls) {
diff --git a/src/jsonrpccpp/server/connectors/httpserver.h b/src/jsonrpccpp/server/connectors/httpserver.h
index 7785edb..0dcf032 100644
--- a/src/jsonrpccpp/server/connectors/httpserver.h
+++ b/src/jsonrpccpp/server/connectors/httpserver.h
@@ -32,6 +32,12 @@ typedef intptr_t ssize_t;
 #include <map>
 #include <microhttpd.h>
 
+#if MHD_VERSION >= 0x00097002
+#  define mhd_result enum MHD_Result
+#else
+#  define mhd_result int
+#endif
+
 namespace jsonrpc {
 /**
  * This class provides an embedded HTTP Server, based on libmicrohttpd, to
@@ -79,7 +85,7 @@ private:
   std::map<std::string, IClientConnectionHandler *> urlhandler;
   struct sockaddr_in loopback_addr;
 
-  static int callback(void *cls, struct MHD_Connection *connection,
+  static mhd_result callback(void *cls, struct MHD_Connection *connection,
                       const char *url, const char *method, const char *version,
                       const char *upload_data, size_t *upload_data_size,
                       void **con_cls);
-- 
2.25.1