In my recent FreeBSD update activity, the following files blocked the "delete old things" activity from from deleting the related old 17/ subdirectory tree for clang:
-r--r--r-- 1 root wheel - 8378 Mar 2 19:39:47 2024 /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/usr/lib/clang/17/lib/freebsd/libclang_rt.asan_static-aarch64.a -r--r--r-- 1 root wheel - 998 Mar 2 19:39:47 2024 /usr/obj/BUILDs/main-CA76-nodbg-clang/usr/main-src/arm64.aarch64/tmp/usr/lib/clang/17/lib/freebsd/libclang_rt.fuzzer_interceptors-aarch64.a === Mark Millard marklmi at yahoo.com