lib_ppc/interrupts.c: make board_show_activity() a weak function
This allows to use show_activity() without having to
define an empty board_show_activity() function.
Signed-off-by: Wolfgang Denk <wd@denx.de>
diff --git a/lib_ppc/interrupts.c b/lib_ppc/interrupts.c
index b803952..c5951e9 100644
--- a/lib_ppc/interrupts.c
+++ b/lib_ppc/interrupts.c
@@ -32,7 +32,12 @@
#endif
#ifdef CONFIG_SHOW_ACTIVITY
- extern void board_show_activity (ulong);
+void board_show_activity (ulong) __attribute__((weak, alias("__board_show_activity")));
+
+void __board_show_activity (ulong dummy)
+{
+ return;
+}
#endif /* CONFIG_SHOW_ACTIVITY */
#ifndef CFG_WATCHDOG_FREQ