mp_msg: change mp_dbg() to inline function to check syntax

Change mp_dbg() from a macro that is defined to empty when MP_DEBUG is
unset to an inline function that has an empty body when MP_DEBUG is
unset. This allows the syntax of the calls to be checked even when
compiling without MP_DEBUG set.

1 files changed, 8 insertions, 3 deletions

diff --git a/mp_msg.h b/mp_msg.h
index 7273b2a82d..7e2b4f29b5 100644
--- a/mp_msg.h
+++ b/mp_msg.h
@@ -140,16 +140,21 @@ void mp_msg_va(int mod, int lev, const char *format, va_list va);
 #ifdef __GNUC__
 void mp_msg(int mod, int lev, const char *format, ... ) __attribute__ ((format (printf, 3, 4)));
 void mp_tmsg(int mod, int lev, const char *format, ... ) __attribute__ ((format (printf, 3, 4)));
+static inline void mp_dbg(int mod, int lev, const char *format, ...) __attribute__ ((format (printf, 3, 4)));
 #else // not GNU C
 void mp_msg(int mod, int lev, const char *format, ... );
 void mp_tmsg(int mod, int lev, const char *format, ...)
 #endif /* __GNUC__ */
 
+static inline void mp_dbg(int mod, int lev, const char *format, ...)
+{
 #ifdef MP_DEBUG
-#define mp_dbg(mod,lev, ... ) mp_msg(mod, lev, __VA_ARGS__)
-#else
-#define mp_dbg(mod,lev, ... ) /* only useful for developers */
+    va_list va;
+    va_start(va, format);
+    mp_msg_va(mod, lev, format, va);
+    va_end(va);
 #endif
+}
 
 const char* filename_recode(const char* filename);