Log Message:
Apply patches from /usr/pkg/lib/python3.7/site-packages/mesonbuild/envconfig.py
to fix e.g.

  File \ 
"/usr/pkg/lib/python3.7/site-packages/mesonbuild/dependencies/base.py", \ 
line 1966, in from_entry
    return ExternalProgram(name, command=command, silent=True)
  File \ 
"/usr/pkg/lib/python3.7/site-packages/mesonbuild/dependencies/base.py", \ 
line 1929, in __init__
    self.path = self.command[-1]
IndexError: list index out of range
*** Error code 2

Stop.
make[1]: stopped in /usr/pkgsrc/devel/at-spi2-atk
*** Error code 1