Vala Gtk example with Meson

Meson is a build system popular in the Gtk world.

Prerequisites

# Void Linux
$ sudo xbps-install meson
# Arch Linux
$ sudo pacman -S meson

Run

# We assume build dir is `build`.
# Meson requires build directory to be separate from source files.
# So we run this to prepare a directory named "build"
$ meson build
# Now we build
$ cd build
$ meson compile
# Now run
$ ./gtkexample