devel/llvm18 on amd64: phase: package "Unable to access file . . ./stage/usr/local/llvm18/lib/clang/18/include/arm_sme.h" more

I attempted a poudriere bulk run based on devel/llvm* using
devel/llvm18 and got (amd64 context, no qemu involved: native):

=======================<phase: package        >============================
===== env: 'PKG_NOTES=build_timestamp ports_top_git_hash ports_top_checkout_unclean port_git_hash port_checkout_unclean built_by' 'PKG_NOTE_build_timestamp=2024-02-06T10:59:08+0000' 'PKG_NOTE_ports_top_git_hash=ac84a244ad6a' 'PKG_NOTE_ports_top_checkout_unclean=yes' 'PKG_NOTE_port_git_hash=9e99ad2987fb' 'PKG_NOTE_port_checkout_unclean=yes' 'PKG_NOTE_built_by=poudriere-git-3.4.99.20231211' NO_DEPENDS=yes USER=root UID=0 GID=0
===>  Building packages for llvm18-18.1.0.r1
===>   Building llvm18-18.1.0.r1
pkg-static: Unable to access file /wrkdirs/usr/ports/devel/llvm18/work-default/stage/usr/local/llvm18/lib/clang/18/include/arm_sme.h:No such file or directory
pkg-static: Unable to access file /wrkdirs/usr/ports/devel/llvm18/work-default/stage/usr/local/llvm18/lib/clang/18/include/arm_vector_types.h:No such file or directory
*** Error code 1

Stop.
make: stopped in /usr/ports/devel/llvm18

===
Mark Millard
marklmi at yahoo.com