First phase of improving debug messages

src/misc.c

@@ -2132,6 +2132,13 @@ const char *rig_get_caps_cptr(rig_model_t rig_model,
     }
 }
 
+void errmsg(int err, char *s, const char *func, const char *file, int line)
+{
+    rig_debug(RIG_DEBUG_ERR, "%s(%s:%d): %s: %s\b", __func__, file, line, s,
+              rigerror(err));
+}
+
+
 //! @endcond
 
 /** @} */

src/misc.h

@@ -138,7 +138,10 @@ extern HAMLIB_EXPORT(int) parse_hoststr(char *host, char hoststr[256], char port
 #  endif
 #endif
 
-
+void errmsg(int err, char *s, const char *func, const char *file, int line);
+#define ERRMSG(err, s) errmsg(err,  s, __func__, __FILE__, __LINE__)
+#define ENTERFUNC rig_debug(RIG_DEBUG_VERBOSE, "%s(%d):%s entered\n", __FILE__, __LINE__, __func__)
+#define RETURNFUNC(rc) rig_debug(RIG_DEBUG_VERBOSE, "%s(%d):%s return\n", __FILE__, __LINE__, __func__);return rc
 
 __END_DECLS