[PATCH v2 2/2] sdk: fold SDK_TOOLCHAIN_LANGS into SDK_FEATURES

[Trevor Woerner <twoerner@gmail.com>]

Selecting the toolchain languages for an SDK is the same kind of choice
as selecting any other optional SDK content, so it does not need a list
of its own.

Make "go" and "rust" values of SDK_FEATURES and mark SDK_TOOLCHAIN_LANGS
as renamed so existing settings are reported rather than silently
ignored.

AI-Generated: codex/claude-opus 5 (xhigh)
Signed-off-by: Trevor Woerner <twoerner@gmail.com>
---
changes in v2:
- autobuilder.conf keeps += rather than switching to :append
---
 meta/classes-recipe/populate_sdk_base.bbclass | 21 +++++++++----------
 meta/conf/bitbake.conf                        |  1 +
 .../yocto-autobuilder/autobuilder.conf        |  2 +-
 .../packagegroups/packagegroup-core-sdk.bb    |  2 +-
 4 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/meta/classes-recipe/populate_sdk_base.bbclass b/meta/classes-recipe/populate_sdk_base.bbclass
index aea4226ec33e..b2e6f1cae9eb 100644
--- a/meta/classes-recipe/populate_sdk_base.bbclass
+++ b/meta/classes-recipe/populate_sdk_base.bbclass
@@ -59,27 +59,26 @@ B:task-populate-sdk = "${SDK_DIR}"
 
 SDKTARGETSYSROOT = "${SDKPATH}/sysroots/${REAL_MULTIMACH_TARGET_SYS}"
 
-SDK_TOOLCHAIN_LANGS ??= ""
-SDK_TOOLCHAIN_LANGS:remove:sdkmingw32 = "rust"
+SDK_FEATURES:remove:sdkmingw32 = "rust"
 # libstd-rs doesn't build for mips n32 with compiler constraint errors
-SDK_TOOLCHAIN_LANGS:remove:mipsarchn32 = "rust"
+SDK_FEATURES:remove:mipsarchn32 = "rust"
 # go will not build for x86-x32 or mingw
-SDK_TOOLCHAIN_LANGS:remove:linux-gnux32 = "go"
-SDK_TOOLCHAIN_LANGS:remove:riscv32 = "go"
-SDK_TOOLCHAIN_LANGS:remove:sdkmingw32 = "go"
-SDK_TOOLCHAIN_LANGS:remove:powerpc = "go"
+SDK_FEATURES:remove:linux-gnux32 = "go"
+SDK_FEATURES:remove:riscv32 = "go"
+SDK_FEATURES:remove:sdkmingw32 = "go"
+SDK_FEATURES:remove:powerpc = "go"
 
 TOOLCHAIN_HOST_TASK ?= " \
     nativesdk-packagegroup-sdk-host \
     packagegroup-cross-canadian-${MACHINE} \
-    ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'go', 'packagegroup-go-cross-canadian-${MACHINE}', '', d)} \
-    ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'rust', 'packagegroup-rust-cross-canadian-${MACHINE}', '', d)} \
+    ${@bb.utils.contains('SDK_FEATURES', 'go', 'packagegroup-go-cross-canadian-${MACHINE}', '', d)} \
+    ${@bb.utils.contains('SDK_FEATURES', 'rust', 'packagegroup-rust-cross-canadian-${MACHINE}', '', d)} \
 "
 TOOLCHAIN_HOST_TASK_ATTEMPTONLY ?= ""
 TOOLCHAIN_TARGET_TASK ?= " \
     ${@oe.utils.multilib_pkg_extend(d, 'packagegroup-core-standalone-sdk-target')} \
-    ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'go', oe.utils.multilib_pkg_extend(d, 'packagegroup-go-sdk-target'), '', d)} \
-    ${@bb.utils.contains('SDK_TOOLCHAIN_LANGS', 'rust', oe.utils.multilib_pkg_extend(d, 'libstd-rs'), '', d)} \
+    ${@bb.utils.contains('SDK_FEATURES', 'go', oe.utils.multilib_pkg_extend(d, 'packagegroup-go-sdk-target'), '', d)} \
+    ${@bb.utils.contains('SDK_FEATURES', 'rust', oe.utils.multilib_pkg_extend(d, 'libstd-rs'), '', d)} \
     target-sdk-provides-dummy \
 "
 TOOLCHAIN_TARGET_TASK_ATTEMPTONLY ?= ""
diff --git a/meta/conf/bitbake.conf b/meta/conf/bitbake.conf
index c402f9f0b7c8..8eae49650bd3 100644
--- a/meta/conf/bitbake.conf
+++ b/meta/conf/bitbake.conf
@@ -128,6 +128,7 @@ BB_RENAMED_VARIABLES[DISTRO_FEATURES_BACKFILL_CONSIDERED] = "DISTRO_FEATURES_OPT
 BB_RENAMED_VARIABLES[MACHINE_FEATURES_DEFAULT] = "is obsolete, add all default features to MACHINE_FEATURES_DEFAULTS"
 BB_RENAMED_VARIABLES[MACHINE_FEATURES_BACKFILL] = "is obsolete, add all default features to MACHINE_FEATURES_DEFAULTS"
 BB_RENAMED_VARIABLES[MACHINE_FEATURES_BACKFILL_CONSIDERED] = "MACHINE_FEATURES_OPTED_OUT"
+BB_RENAMED_VARIABLES[SDK_TOOLCHAIN_LANGS] = "SDK_FEATURES"
 
 ##################################################################
 # Architecture-dependent build variables.
diff --git a/meta/conf/fragments/yocto-autobuilder/autobuilder.conf b/meta/conf/fragments/yocto-autobuilder/autobuilder.conf
index a9ae99a451e6..4f1b1ca777f6 100644
--- a/meta/conf/fragments/yocto-autobuilder/autobuilder.conf
+++ b/meta/conf/fragments/yocto-autobuilder/autobuilder.conf
@@ -9,6 +9,6 @@ IMAGE_CLASSES += 'testimage'
 SDK_EXT_TYPE = 'minimal'
 SDK_INCLUDE_TOOLCHAIN = '1'
 ESDK_LOCALCONF_REMOVE:append = 'BB_HASHSERVE'
-SDK_TOOLCHAIN_LANGS += 'go rust'
+SDK_FEATURES += 'go rust'
 PTEST_EXPECT_FAILURE = '1'
 
diff --git a/meta/recipes-core/packagegroups/packagegroup-core-sdk.bb b/meta/recipes-core/packagegroups/packagegroup-core-sdk.bb
index 4a147c059e96..b3010d767456 100644
--- a/meta/recipes-core/packagegroups/packagegroup-core-sdk.bb
+++ b/meta/recipes-core/packagegroups/packagegroup-core-sdk.bb
@@ -10,7 +10,7 @@ inherit packagegroup
 
 #PACKAGEFUNCS =+ 'generate_sdk_pkgs'
 
-TARGET_TOOLCHAIN_LANGS ??= "${SDK_TOOLCHAIN_LANGS}"
+TARGET_TOOLCHAIN_LANGS ??= "${@bb.utils.filter('SDK_FEATURES', 'go rust', d)}"
 TARGET_TOOLCHAIN_LANGS:remove:sdkmingw32 = "rust"
 # libstd-rs doesn't build for mips n32 with compiler constraint errors
 TARGET_TOOLCHAIN_LANGS:remove:mipsarchn32 = "rust"
-- 
2.50.0.173.g8b6f19ccfc3a