[rhythmbox] add macro for checking if the current function will output debug info

[Jonathan Matthew <jmatthew src gnome org>]

commit 32d9e53dd9287eb0a77704c28a6211a27e70f8c7
Author: Jonathan Matthew <jonathan d14n org>
Date:   Mon Jan 5 09:04:31 2015 +1000

    add macro for checking if the current function will output debug info

 lib/rb-debug.h |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/lib/rb-debug.h b/lib/rb-debug.h
index bcdbe48..7515af7 100644
--- a/lib/rb-debug.h
+++ b/lib/rb-debug.h
@@ -36,8 +36,10 @@ G_BEGIN_DECLS
 
 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
 #define rb_debug(...) rb_debug_realf (__func__, __FILE__, __LINE__, TRUE, __VA_ARGS__)
+#define rb_debug_here() rb_debug_matches (__func__, __FILE__)
 #elif defined(__GNUC__) && __GNUC__ >= 3
 #define rb_debug(...) rb_debug_realf (__FUNCTION__, __FILE__, __LINE__, TRUE, __VA_ARGS__)
+#define rb_debug_here() rb_debug_matches (__FUNCTION__, __FILE__)
 #else
 #define rb_debug
 #endif