mraa: Fix build on musl

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>

meta-oe/recipes-extended/mraa/mraa/0001-include-endian.h-for-be16toh-and-le16toh-declaration.patch

@@ -0,0 +1,27 @@
+From 2c85decc3b93bfe7322309d2ca7d6377e746c18f Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 5 Feb 2018 09:51:08 -0800
+Subject: [PATCH] include endian.h for be16toh and le16toh declarations
+
+Upstream-Status: Submitted [https://github.com/intel-iot-devkit/mraa/pull/863]
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+---
+ examples/iio_driver.c | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/examples/iio_driver.c b/examples/iio_driver.c
+index c5a0181..568011c 100644
+--- a/examples/iio_driver.c
++++ b/examples/iio_driver.c
+@@ -22,6 +22,7 @@
+  * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+  */
+ 
++#include <endian.h>
+ #include <unistd.h>
+ #include "mraa/iio.h"
+ 
+-- 
+2.16.1
+

meta-oe/recipes-extended/mraa/mraa_git.bb

@@ -8,7 +8,9 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=4b92a3b497d7943042a6db40c088c3f2"
 SRCREV = "fbb7d9232067eac3f4508a37a8f7ea0c4fcebacb"
 PV = "1.9.0-git${SRCPV}"
 
-SRC_URI = "git://github.com/intel-iot-devkit/${BPN}.git;protocol=http"
+SRC_URI = "git://github.com/intel-iot-devkit/${BPN}.git;protocol=http \
+           file://0001-include-endian.h-for-be16toh-and-le16toh-declaration.patch \
+           "
 
 S = "${WORKDIR}/git"