Fix build when using libmicrohttpd 0.9.75

[sonicdebris]

Building on ubuntu 22.04 requires a trivial fix due to some changes in the libmicrohttpd version available for installation through apt-get.

It's about an int argument being replaced with an enum, the full diff of the changes that fix the issue is here:

@@ -103,7 +103,7 @@ static void endRequest (void *cls, struct MHD_Connection *connection, void **con

 // process rest API query
-STATIC int requestApi (struct MHD_Connection *connection, AJG_session *session, const char *method,  const char* url
+STATIC enum MHD_Result requestApi (struct MHD_Connection *connection, AJG_session *session, const char *method,  const char* url
                       , const char *upload_data, size_t *upload_data_size, void **con_cls) {
   const char  *query, *param;
   json_object *cmd;
@@ -333,7 +333,7 @@ STATIC void computeEtag (char *etag, int maxlen, struct stat *sbuf) {
 }

 // minimal httpd file server for static HTML,JS,CSS,etc...
-STATIC int requestFile (struct MHD_Connection *connection, AJG_session *session, const char* url) {
+STATIC enum MHD_Result requestFile (struct MHD_Connection *connection, AJG_session *session, const char* url) {
     int fd;
     int ret;
     struct stat sbuf;
@@ -414,7 +414,7 @@ STATIC int requestFile (struct MHD_Connection *connection, AJG_session *session,
     return ret;
 }

-STATIC int newRequest (void *cls,
+STATIC enum MHD_Result newRequest (void *cls,
   struct MHD_Connection *connection,
   const char *url,
   const char *method,
@@ -435,7 +435,7 @@ STATIC int newRequest (void *cls,
 }

-STATIC int newClient (void *cls, const struct sockaddr * addr, socklen_t addrlen) {
+STATIC enum MHD_Result newClient (void *cls, const struct sockaddr * addr, socklen_t addrlen) {
   // check if client is comming from an acceptable IP
   return (MHD_YES); // MHD_NO
 }

 // minimal httpd file server for static HTML,JS,CSS,etc...
-STATIC int requestFile (struct MHD_Connection *connection, AJG_session *session, const char* url) {
+STATIC enum MHD_Result requestFile (struct MHD_Connection *connection, AJG_session *session, const char* url) {

I could open a PR if the changes are ok.

[fulup-bzh]

Please send a PR and I will merge it.