Index: funcs/func_realtime.c
===================================================================
--- funcs/func_realtime.c	(revision 11943)
+++ funcs/func_realtime.c	(working copy)
@@ -42,7 +42,7 @@
 #include "asterisk/utils.h"
 #include "asterisk/app.h"
 
-static char *function_realtime_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) 
+static int function_realtime_read(struct ast_channel *chan, char *cmd, char *data, char *buf, size_t len) 
 {
 
 	struct ast_variable *var=NULL,*head=NULL;
@@ -58,7 +58,7 @@
 
 	if (ast_strlen_zero(data)) {
 		ast_log(LOG_WARNING, "Syntax: REALTIME(family|metamatch[|value[|delim1[|delim2]]]) - missing argument!\n");
-		return NULL;
+		return -1;
 	} else
 		AST_STANDARD_APP_ARGS(args, data);
 
@@ -83,13 +83,13 @@
 		}	
 	}
 	else
-		return NULL;
+		return -1;
 	ast_copy_string(buf, results, len);
 	
-	return buf;
+	return 0;
 }
 
-static void function_realtime_write(struct ast_channel *chan, char *cmd, char *data, const char *value)
+static int function_realtime_write(struct ast_channel *chan, char *cmd, char *data, const char *value)
 {
 	int res = 0;
 	AST_DECLARE_APP_ARGS(args,
@@ -101,7 +101,7 @@
 
 	if (ast_strlen_zero(data)) {
 		ast_log(LOG_WARNING, "Syntax: REALTIME(family|metamatch|value|newcol) - missing argument!\n");
-		return;
+		return -1;
 	} else
 		AST_STANDARD_APP_ARGS(args, data);
 
@@ -111,12 +111,9 @@
 		ast_log(LOG_WARNING, "Failed to update. Check the debug log for possible data repository related entries.\n");
 	}
 
-	return;
+	return 0;
 }
 
-#ifndef BUILTIN_FUNC
-static
-#endif
 struct ast_custom_function realtime_function = {
 	.name = "REALTIME",
 	.synopsis = "RealTime Read/Write Functions",