Unable to create a poudriere arm64 jail on amd64

Hello,

I am trying to build a poudriere jail with

# poudriere jail -c -j arm64-15_0 -v 15.0-RELEASE -a arm64.aarch64

But it fails, with the errors below. I am on an amd64 laptop.
Version details: 16.0-CURRENT main-n282366-8291ea8761c2

I have been able to create an arm64 poudriere jail
for 14.4-RELEASE without issues.

How do I fix it? Any Idea?
Software on the laptop is a bit outdated, but it does not
look as an outdated software issue to me. Am I wrong? Am
I the only one with this bug?

Thanks,

Lorenzo Salvadore

===> usr.bin/clang/clang-scan-deps (all)        
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/clang-scan-deps/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/ja
ils/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libclang/libprivateclang.so      
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/clang-scan-deps/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/ja
ils/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so        
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/clang-scan-deps/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/ja
ils/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/libsys/libsys_pie.a                    
===> usr.bin/clang/llvm-ar (all)                                                                
===> usr.bin/clang/llvm-nm (all)                
===> usr.bin/clang/llvm-objcopy (all)           
===> usr.bin/clang/llvm-objdump (all)                                                           
===> usr.bin/clang/llvm-readobj (all)           
===> usr.bin/clang/llvm-size (all)              
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/llvm-ar/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/jails/arm6
4-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so                
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/llvm-ar/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/jails/arm6
4-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/libsys/libsys_pie.a                            
c++: error: no such file or directory: '/usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libclang/libprivateclang.so'
c++: error: no such file or directory: '/usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so'
--- clang-scan-deps ---                                                                         
*** [clang-scan-deps] Error code 1                                                              
                                                
make[5]: stopped making "all" in /usr/local/poudriere/jails/arm64-15_0/usr/src/usr.bin/clang/clang-scan-deps
make[5]: 1 error                                                                                
                                                
make[5]: stopped making "all" in /usr/local/poudriere/jails/arm64-15_0/usr/src/usr.bin/clang/clang-scan-deps
--- all_subdir_usr.bin/clang/clang-scan-deps ---                                                
                                                                                                
make[4]: stopped making "all" in /usr/local/poudriere/jails/arm64-15_0/usr/src/usr.bin/clang    
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/llvm-nm/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/jails/arm6
4-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so                
make[5]: /usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/usr.bin/clang/llvm-nm/.depend:1: ignoring stale .depend for /usr/obj/usr/local/poudriere/jails/arm6
4-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/libsys/libsys_pie.a                            
c++: error: no such file or directory: '/usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so'
c++: error: no such file or directory: '/usr/obj/usr/local/poudriere/jails/arm64-15_0/usr/src/amd64.amd64/nxb/arm64.aarch64/lib/clang/libllvm/libprivatellvm.so'
--- llvm-nm ---                                                                                 
*** [llvm-nm] Error code 1