[OE-core] [PATCH] bitbake.conf: add a lazy default for SDKMACHINE

[Ross Burton]

If the user doesn't set SDKMACHINE in their local.conf then uninative and
buildtools will fail in obscure ways, so ensure that a default value is set.

Also as SDK_ARCH will be overritten then loading the machine-sdk configuration
file, don't bother assigning it.

Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 meta/conf/bitbake.conf | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index b6a1a68..359f787 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -129,7 +129,7 @@ TARGET_CC_ARCH = "${TUNE_CCARGS}"
 TARGET_LD_ARCH = "${TUNE_LDARGS}"
 TARGET_AS_ARCH = "${TUNE_ASARGS}"
 
-SDK_ARCH = "${BUILD_ARCH}"
+SDKMACHINE ??= "x86_64"
 SDK_OS = "${BUILD_OS}"
 SDK_VENDOR = "-oesdk"
 SDK_SYS = "${SDK_ARCH}${SDK_VENDOR}${@['-' + d.getVar('SDK_OS', True), ''][d.getVar('SDK_OS', True) == ('' or 'custom')]}"
-- 
2.8.1