clang 12 builds failing for arm64 machines

[bhargavdas]

Describe the bug
clang 12 builds using kirkstone-clang12 branch are failing when compiling for arm64 machines.

To Reproduce
To reproduce the issue we can use poky for reference.

Steps to reproduce the behavior:

1. Clone poky (git://git.yoctoproject.org/poky) and checkout kirkstone branch.
2. Clone meta-clang (https://github.com/kraj/meta-clang.git) and checkout kirkstone-clang12 branch.
3. source poky/oe-init-build-env
4. Add meta-clang in bblayers.conf
5. bitbake clang
6. See error

Expected behavior
clang 12 build should be successful.

error log

| ninja: build stopped: subcommand failed.
| WARNING: /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/temp/run.do_compile.1348470:160 exit 1 from 'eval ${DESTDIR:+DESTDIR=${DESTDIR} }VERBOSE=1 cmake --build '/home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/build' "$@" -- ${EXTRA_OECMAKE_BUILD}'
| WARNING: Backtrace (BB generated script):
| 	#1: cmake_runcmake_build, /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/temp/run.do_compile.1348470, line 160
| 	#2: cmake_do_compile, /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/temp/run.do_compile.1348470, line 154
| 	#3: do_compile, /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/temp/run.do_compile.1348470, line 149
| 	#4: main, /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/build-clang12-arm64/tmp/work/cortexa57-poky-linux/clang/12.0.0-r0/temp/run.do_compile.1348470, line 173
ERROR: Task (/home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/meta-clang/recipes-devtools/clang/clang_git.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 1204 tasks of which 0 didn't need to be rerun and 1 failed.

Summary: 1 task failed:
  /home/panchganga/baxter/bhargav/workspace-poky-kirkstone-24122024/meta-clang/recipes-devtools/clang/clang_git.bb:do_compile
Summary: There was 1 ERROR message, returning a non-zero exit code.

Complete log
clang12-build-failure.log

Desktop (please complete the following information):

• OS: [e.g. ubuntu 22.04]

[bhargavdas]

Hi @kraj , we need clang 12 support for few application builds. Is kirkstone-clang12 branch still supported ?