find_program() defaults to require the program in question, and as
failing to locate it is now fatal, there's no longer a need for
checking whether it was found later.
Spotted by Michael Catanzaro.
The previous implementation of the CSS generation logic considered sassc
an optional dependency and made sure for that reason that the result CSS
files ended up in the source directory, so that they could be checked
in and kept in sync with the source sass files.
As we are making sassc a required dependency, we can now stop doing that
extra work and simply rely on the CSS files being automatically generated
each time the sass sources change. By doing this, we can now effectively
get rid of the CSS files checked in the repo as well as of the parse_sass.sh
script, since the CSS files will now live on the build directory only.
https://bugzilla.gnome.org/show_bug.cgi?id=792822
IBus was initially made optional as gnome-shell depended on too
recent API. This API is now old enough and gnome-shell is committing
further to IBus by implementing a ClutterInputMethod through it.
Let's just make IBus a mandatory dependency, instead of making code
paths trickier to cater for situations where it's missing.
gvc has made some recent changes that rename its user options
following meson guidelines for GNOME packages[0].
The options used in gvc as a subproject have been renamed
accordingly.
[0] https://wiki.gnome.org/Initiatives/GnomeGoals/MesonPorting
It turns out that NetworkManager does export the directory as pkg-config
variable after all, so use that instead of building the path ourselves
from the prefix.
https://bugzilla.gnome.org/show_bug.cgi?id=789811
Auto-detect options add some convenience for platforms where a
particular feature isn't available - systemd on non-Linux OS comes
to mind - but the downside is that it is easy to accidentally build
without a desired feature. We consider the latter much more serious
nowadays, so turn our auto-detect options into regular boolean
options.
https://bugzilla.gnome.org/show_bug.cgi?id=791007
Meson options are typed, so the prefix isn't necessary, and indeed
looks odd when used to disable the option:
-Denable_foo=false
Also replace underscores with dashes, which is the preferred meson
style.
https://bugzilla.gnome.org/show_bug.cgi?id=791007
Meson is on track to replace autotools as the build system of choice,
so support it in addition to autotools. If all goes well, we'll
eventually be able to drop the latter ...
https://bugzilla.gnome.org/show_bug.cgi?id=783229
