From 1ca6bef2877ed4757710494fdd41823fe7122b09 Mon Sep 17 00:00:00 2001
From: Nico Huber <nico.h@gmx.de>
Date: Wed, 20 Dec 2017 00:42:16 +0100
Subject: spi: Define _XOPEN_SOURCE to get ffs() from strings.h

Fixes build with Musl libc.

Change-Id: I92b69300a302c4491e234666ac371027571801c9
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/22951
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: David Hendricks <david.hendricks@gmail.com>
---
 spi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/spi.c b/spi.c
index 894f73f60..c306ac351 100644
--- a/spi.c
+++ b/spi.c
@@ -22,6 +22,8 @@
  * Contains the generic SPI framework
  */
 
+#define _XOPEN_SOURCE 700	/* for ffs() */
+
 #include <strings.h>
 #include <string.h>
 #include "flash.h"
-- 
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