Requiring meson from the future (0.42.0/0.50.0)
Doing in Epiphany meson
with version 0.50.1 prints:
WARNING: Project specifies a minimum meson_version '>= 0.42.0' but uses features which were added in newer versions:
* 0.50.0: {'install arg in configure_file'}
Either lift the required version, or rephrase the feature.