py311-numpy broken on PPC: ERROR: Unknown compiler(s): [['cython'], ['cython3']]

[barracuda156]

The Meson build system
Version: 1.2.99
Source dir: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-numpy/py311-numpy/work/numpy-1.26.1
Build dir: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-numpy/py311-numpy/work/numpy-1.26.1/.mesonpy-dd10zcxl/build
Build type: cross build
Project name: NumPy
Project version: 1.26.1
C compiler for the host machine: cc -arch ppc (gcc 4.2.1 "powerpc-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5626)")
C linker for the host machine: cc -arch ppc ld64 87.3.1
C++ compiler for the host machine: c++ -arch ppc (gcc 4.2.1 "powerpc-apple-darwin10-g++-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5626)")
C++ linker for the host machine: c++ -arch ppc ld64 87.3.1

../../meson.build:1:0: ERROR: Unknown compiler(s): [['cython'], ['cython3']]
The following exception(s) were encountered:
Running `cython -V` gave "[Errno 2] No such file or directory: 'cython'"
Running `cython3 -V` gave "[Errno 2] No such file or directory: 'cython3'"

A full log can be found at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_python_py-numpy/py311-numpy/work/numpy-1.26.1/.mesonpy-dd10zcxl/build/meson-logs/meson-log.txt

ERROR Backend subprocess exited when trying to invoke build_wheel