From a25eebef9b4cd549da9417029f2f18996f26afbf Mon Sep 17 00:00:00 2001
From: mfranz <mfranz>
Date: Mon, 2 Jul 2007 12:55:10 +0000
Subject: [PATCH] add SG_ORIGIN macro that expands to a string 
 __FILE__":"__LINE__ Note that __LINE__ is a number and can't be directly used
 in string context, which makes the macro worthwhile. (IMHO :-)

---
 simgear/debug/logstream.hxx | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/simgear/debug/logstream.hxx b/simgear/debug/logstream.hxx
index 3bc49a76..c4ea7834 100644
--- a/simgear/debug/logstream.hxx
+++ b/simgear/debug/logstream.hxx
@@ -322,6 +322,9 @@ sglog()
 # define SG_LOG(C,P,M) sglog() << loglevel(C,P) << M << endl
 #endif
 
+#define SG_STRINGIFY(x) #x
+#define SG_TOSTRING(x) SG_STRINGIFY(x)
+#define SG_ORIGIN __FILE__ ":" SG_TOSTRING(__LINE__)
 
 #endif // _LOGSTREAM_H