warning: fix warning where GCC didn't catch a doubly declared global structure

Why hasn't earlier versions of GCC caught this? Bug?

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

diff --git a/src/flash/nor/at91sam3.c b/src/flash/nor/at91sam3.c
index 8b922f3a7bee5c6013aee8385fe7024539c1c005..b8789a3cba7011e9eb51e96a4d13104386cc6ab9 100644 (file)
--- a/src/flash/nor/at91sam3.c
+++ b/src/flash/nor/at91sam3.c
@@ -98,7 +98,7 @@
 #define  offset_EFC_FRR   12
 
 
-struct flash_driver at91sam3_flash;
+extern struct flash_driver at91sam3_flash;
 
 static float
 _tomhz(uint32_t freq_hz)