meson/docs/markdown/snippets/configure_file_output_format.md

New keyword argument output_format for configure_file()

When called without an input file, configure_file generates a C header file by default. A keyword argument was added to allow specifying the output format, for example for use with nasm or yasm:

conf = configuration_data()
conf.set('FOO', 1)

configure_file('config.asm',
  configuration: conf,
  output_format: 'nasm')