bitbake.conf: use TUNE_PKGARCH instead of TARGET_ARCH in SDK_NAME

* also use weak assignment for SDK_NAME_PREFIX as suggested by khem
* TUNE_PKGARCH is not 100% right too, because such SDK image usually has few
  machine specific packages included (e.g. base-files, securetty, opkg configs)
  but those are not important for SDK users so it's better to have one SDK for
  whole e.g. armv7a-vfp-neon then 6 SDK for each machine which would work the
  same.
  You can see diff between crespo and om-gta04 SDK here:
  http://build.shr-project.org/shr-core/sdk/oecore-i686-armv7a-vfp-neon-toolchain-efl-crespo-om-gta04.diff

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index 56e3e4de45ae2771e7ef2e6ba316b5ee3df959ae..91fe070718e830dc6b6d2f0c5ee7216bdcee2bc6 100644 (file)
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -366,8 +366,8 @@ PKGDATA_DIR = "${TMPDIR}/pkgdata/${MULTIMACH_TARGET_SYS}"
 # SDK variables, 
 ##################################################################
 
-SDK_NAME_PREFIX = "oecore"
-SDK_NAME = "${SDK_NAME_PREFIX}-${SDK_ARCH}-${TARGET_ARCH}"
+SDK_NAME_PREFIX ?= "oecore"
+SDK_NAME = "${SDK_NAME_PREFIX}-${SDK_ARCH}-${TUNE_PKGARCH}"
 SDKPATH = "/usr/local/${SDK_NAME_PREFIX}-${SDK_ARCH}"
 SDKPATHNATIVE = "${SDKPATH}/sysroots/${SDK_SYS}"