A new type of option can be defined in meson_options.txt
for the traditional
enabled / disabled / auto
tristate. The value of this option can be passed to
the required
keyword argument of functions dependency()
, find_library()
,
find_program()
and add_languages()
.
A new global option auto_features
has been added to override the value of all
auto
features. It is intended to be used by packagers to have full control on
which feature must be enabled or disabled.