[OE-core] [PATCH][V3] mmc-utils: fix the building failure when DEBUG_BUILD is 1

[rongqing.li at windriver.com]

From: Roy Li <rongqing.li at windriver.com>

AM_CFLAGS in Makefile includes -D_FORTIFY_SOURCE=2 which will lead
to building failure when DEBUG_BUILD is 1.
So Redefine AM_CFLAGS, input it from the environment to overrides
variable in makefile

Signed-off-by: Roy Li <rongqing.li at windriver.com>
---
 meta/recipes-devtools/mmc/mmc-utils_git.bb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/recipes-devtools/mmc/mmc-utils_git.bb b/meta/recipes-devtools/mmc/mmc-utils_git.bb
index bdb4fed..d6d77d9 100644
--- a/meta/recipes-devtools/mmc/mmc-utils_git.bb
+++ b/meta/recipes-devtools/mmc/mmc-utils_git.bb
@@ -11,6 +11,8 @@ PV = "0.1"
 SRC_URI = "git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc-utils.git;branch=${BRANCH} \
            file://0001-mmc.h-don-t-include-asm-generic-int-ll64.h.patch"
 
+EXTRA_OEMAKE = 'AM_CFLAGS="-D_FILE_OFFSET_BITS=64"'
+
 S = "${WORKDIR}/git"
 
 do_install() {
-- 
2.1.4