odin @0.2.24.09: Undefined symbols: __availability_version_check

[ryandesign (Ryan Carsten Schmidt)]

​https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/277099/steps/install-port/logs/stdio

Executing:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_odin/odin/work/odin-2024-09" && /usr/bin/make -j4 release 
DEBUG: system:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_odin/odin/work/odin-2024-09" && /usr/bin/make -j4 release 
./build_odin.sh release
+ /opt/local/bin/clang++-mp-17 src/main.cpp src/libtommath.cpp -Wno-switch -Wno-macro-redefined -Wno-unused-value -I/opt/local/include '-DODIN_VERSION_RAW="dev-2024-09"' -Os -stdlib=libc++ -std=c++14 -I/opt/local/libexec/llvm-18/include -std=c++17 -stdlib=libc++ -fno-exceptions -funwind-tables -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -L/opt/local/libexec/llvm-18/lib -Wl,-search_paths_first -Wl,-headerpad_max_install_names --sysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -O3 -L/opt/local/lib -Wl,-headerpad_max_install_names -Wl,-rpath,/opt/local/libexec/llvm-18/lib -pthread -lm -lstdc++ -liconv -ldl -framework System -lLLVM -o odin
Undefined symbols for architecture x86_64:
  "__availability_version_check", referenced from:
      ___isPlatformVersionAtLeast in libclang_rt.osx.a(os_version_check.c.o)
      __initializeAvailabilityCheck in libclang_rt.osx.a(os_version_check.c.o)
ld: symbol(s) not found for architecture x86_64
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [release] Error 1
Command failed:  cd "/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_lang_odin/odin/work/odin-2024-09" && /usr/bin/make -j4 release 
Exit code: 2

Is this a bug in clang-17 and/or clang-18 or in the way that odin is using them?