MT#55283 fix compilation for older libcurl

Debian stretch has an old libcurl which doesn't support MIMEPOST.
Disable the entire feature if libcurl is too old.

Change-Id: Id1d2a4d821671142523af355188f21ff06ad20f1

recording-daemon/main.c

@@ -15,6 +15,7 @@
 #include <mysql.h>
 #include <pwd.h>
 #include <grp.h>
+#include <curl/curl.h>
 #include "log.h"
 #include "epoll.h"
 #include "inotify.h"
@@ -219,7 +220,9 @@ static void options(int *argc, char ***argv) {
 		{ "notify-no-verify", 	0,   0, G_OPTION_ARG_NONE,	&notify_nverify,"Don't verify HTTPS peer certificate",	NULL		},
 		{ "notify-concurrency",	0,   0, G_OPTION_ARG_INT,	&notify_threads,"How many simultaneous requests",	"INT"		},
 		{ "notify-retries",	0,   0, G_OPTION_ARG_INT,	&notify_retries,"How many times to retry failed requesets","INT"	},
+#if CURL_AT_LEAST_VERSION(7,56,0)
 		{ "notify-record", 	0,   0, G_OPTION_ARG_NONE,      &notify_record, "Also attach recorded file to request", NULL            },
+#endif
 		{ NULL, }
 	};
 

recording-daemon/notify.c

@@ -41,7 +41,9 @@ static void do_notify(void *p, void *u) {
 
 	// set up the CURL request
 
+#if CURL_AT_LEAST_VERSION(7,56,0)
 	curl_mime *mime = NULL;
+#endif
 	CURL *c = curl_easy_init();
 	if (!c)
 		goto fail;
@@ -97,6 +99,7 @@ static void do_notify(void *p, void *u) {
 			goto fail;
 	}
 
+#if CURL_AT_LEAST_VERSION(7,56,0)
 	if (notify_record) {
 		err = "initializing curl mime&part";
 		curl_mimepart *part;
@@ -112,6 +115,7 @@ static void do_notify(void *p, void *u) {
 		if (ret != CURLE_OK)
 			goto fail;
 	}
+#endif
 
 	err = "performing request";
 	ret = curl_easy_perform(c);
@@ -180,8 +184,10 @@ cleanup:
 	if (c)
 		curl_easy_cleanup(c);
 
+#if CURL_AT_LEAST_VERSION(7,56,0)
 	if (mime)
 		curl_mime_free(mime);
+#endif
 
 	curl_slist_free_all(req->headers);
 	g_free(req->name);