Add build option to check for runtime dependencies (default)

This is to aid packagers/developers where there are apps
that are needed to successfully run budgie-desktop.
For the final packaging, distros can switch off this check
to speed up build-time i.e. limit the number of additional
dependencies these packages would bring in.

meson.build

@@ -70,6 +70,15 @@ dep_upower = dependency('upower-glib', version: '>= 0.99.8')
 # Create config.h
 cdata = configuration_data()
 
+if get_option('with-runtime-dependencies')
+    find_program('wlopm', required: true)
+    find_program('swayidle', required: true)
+    found_gtklock = find_program('gtklock', required: false)
+    if found_gtklock.found() == false
+        find_program('swaylock', required: true)
+    endif
+endif
+
 # Inspired by https://github.com/GNOME/recipes/blob/master/meson.build
 package_version = meson.project_version()
 

meson_options.txt

@@ -7,3 +7,4 @@ option('with-libuuid-time-safe', type: 'boolean', value: true, description: 'Ena
 option('with-polkit', type: 'boolean', value: true, description: 'Enable PolKit support')
 option('with-stateless', type: 'boolean', value: false, description: 'Enable stateless XDG paths')
 option('xdg-appdir', type: 'string', description: 'XDG autostart path')
+option('with-runtime-dependencies', type: 'boolean', value: true, description: 'Check during build for critical runtime dependencies')