populate_sdk_ext.bbclass: use weak assignment for TOOLCHAINEXT_OUTPUTNAME

The TOOLCHAINEXT_OUTPUTNAME is different from TOOLCHAIN_OUTPUTNAME, it
is used for eSDK only, so that it doesn't mix with SDK, use "?=" for it
so that other conf file can define it.

If we don't use "?=" here, then we need use forcevariable to redfine it:
TOOLCHAINEXT_OUTPUTNAME_forcevariable = "foo"

Signed-off-by: Robert Yang <liezhi.yang@windriver.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>

diff --git a/meta/classes/populate_sdk_ext.bbclass b/meta/classes/populate_sdk_ext.bbclass
index 26b5ca61d84207f80e5466f41e96ee1d39248b77..0e3656b47a6d270213b4d4432d035f9a1cbb9f76 100644 (file)
--- a/meta/classes/populate_sdk_ext.bbclass
+++ b/meta/classes/populate_sdk_ext.bbclass
@@ -77,7 +77,7 @@ COREBASE_FILES ?= " \
 
 SDK_DIR_task-populate-sdk-ext = "${WORKDIR}/sdk-ext"
 B_task-populate-sdk-ext = "${SDK_DIR}"
-TOOLCHAINEXT_OUTPUTNAME = "${SDK_NAME}-toolchain-ext-${SDK_VERSION}"
+TOOLCHAINEXT_OUTPUTNAME ?= "${SDK_NAME}-toolchain-ext-${SDK_VERSION}"
 TOOLCHAIN_OUTPUTNAME_task-populate-sdk-ext = "${TOOLCHAINEXT_OUTPUTNAME}"
 
 SDK_EXT_TARGET_MANIFEST = "${SDK_DEPLOY}/${TOOLCHAINEXT_OUTPUTNAME}.target.manifest"