logging-internal.h: use __attribute__((format)) to check parameters

Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>

diff --git a/include/babeltrace/logging-internal.h b/include/babeltrace/logging-internal.h
index 1480a0829c12335f485d2b5e4db186bd4947fa60..ffcf1cdcf6fa3b0019a844753bc33ba180ffc9d5 100644 (file)
--- a/include/babeltrace/logging-internal.h
+++ b/include/babeltrace/logging-internal.h
@@ -434,9 +434,13 @@
 #endif
 
 #if defined(__printflike)
-       #define _BT_LOG_PRINTFLIKE(a, b) __printflike(a, b)
+       #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
+               __printflike(str_index, first_to_check)
+#elif defined(__GNUC__)
+       #define _BT_LOG_PRINTFLIKE(str_index, first_to_check) \
+               __attribute__((format(__printf__, str_index, first_to_check)))
 #else
-       #define _BT_LOG_PRINTFLIKE(a, b)
+       #define _BT_LOG_PRINTFLIKE(str_index, first_to_check)
 #endif
 
 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__GNUC__)