grub: Replace _BSD_SOURCE macro with _DEFAULT_SOURCE

This is needed with glibc 2.20 since _BSD_SOURCE
macro is gone

(From OE-Core rev: 12edeff6f23512ff88097f7ca4cf30ca3653d2eb)

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-bsp/grub/files/0001-Fix-build-with-glibc-2.20.patch

@@ -0,0 +1,32 @@
+From 275fe0269ecc00af4788afaf9dc151a50b25645b Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Thu, 28 Aug 2014 19:26:14 -0700
+Subject: [PATCH] Fix build with glibc 2.20
+
+* grub-core/kern/emu/hostfs.c: squahes below warning
+  warning: #warning "_BSD_SOURCE and _SVID_SOURCE are deprecated, use _DEFAULT_SOURCE"
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Submitted
+
+---
+ grub-core/kern/emu/hostfs.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/grub-core/kern/emu/hostfs.c b/grub-core/kern/emu/hostfs.c
+index 7e725f6..8dd8e65 100644
+--- a/grub-core/kern/emu/hostfs.c
++++ b/grub-core/kern/emu/hostfs.c
+@@ -19,7 +19,7 @@
+ 
+ #include <config-util.h>
+ 
+-#define _BSD_SOURCE
++#define _DEFAULT_SOURCE
+ #include <grub/fs.h>
+ #include <grub/file.h>
+ #include <grub/disk.h>
+-- 
+2.1.0
+

meta/recipes-bsp/grub/grub_git.bb

@@ -21,6 +21,7 @@ SRCREV = "87de66d9d83446ecddb29cfbdf7369102c8e209e"
 SRC_URI = "git://git.savannah.gnu.org/grub.git \
            file://autogen.sh-exclude-pc.patch \
            file://grub-2.00-add-oe-kernel.patch \
+           file://0001-Fix-build-with-glibc-2.20.patch \
           "
 
 S = "${WORKDIR}/git"