xwayland: generate pkg-config file from Meson

Remove the xwayland.pc.in file:

- This avoids writing down each pkg-config variable twice: once in
  the Meson files to set the configuration data, once in the .pc.in
  file to print it.
- We'll be able to re-use the same variables for use as a
  subproject.

Signed-off-by: Simon Ser <contact@emersion.fr>

hw/xwayland/meson.build

@@ -159,21 +159,29 @@ xwayland_server = executable(
     install_dir: xwayland_path
 )
 
-xwayland_data = configuration_data()
-xwayland_data.set('prefix', get_option('prefix'))
-xwayland_data.set('exec_prefix', '${prefix}')
-xwayland_data.set('PACKAGE_VERSION', meson.project_version())
-xwayland_data.set('xwayland_path', xwayland_path)
-xwayland_data.set('have_glamor', build_glamor ? 'true' : 'false')
-xwayland_data.set('have_eglstream', build_eglstream ? 'true' : 'false')
-xwayland_data.set('have_libdecor', have_libdecor ? 'true' : 'false')
-configure_file(
-    input: 'xwayland.pc.in',
-    output: 'xwayland.pc',
-    configuration: xwayland_data,
-    install_dir: join_paths(get_option('prefix'),
-                            get_option('libdir'),
-                            'pkgconfig'),
+pkgconfig = import('pkgconfig')
+
+pkgconfig.generate(
+    filebase: 'xwayland',
+    name: 'Xwayland',
+    description: 'X Server for Wayland',
+    variables: [
+        'exec_prefix=${prefix}',
+        'xwayland=' + xwayland_path + '/Xwayland',
+        'have_glamor=' + build_glamor.to_string(),
+        'have_eglstream=' + build_eglstream.to_string(),
+        'have_initfd=true',
+        'have_listenfd=true',
+        'have_verbose=true',
+        'have_terminate_delay=true',
+        'have_no_touch_pointer_emulation=true',
+        'have_force_xrandr_emulation=true',
+        'have_geometry=true',
+        'have_fullscreen=true',
+        'have_host_grab=true',
+        'have_decorate=' + have_libdecor.to_string(),
+        'have_byteswappedclients=true',
+    ],
 )
 
 xwayland_manpage = configure_file(

hw/xwayland/xwayland.pc.in

@@ -1,20 +0,0 @@
-prefix=@prefix@
-exec_prefix=@exec_prefix@
-
-Name: Xwayland
-Description: X Server for Wayland
-Version: @PACKAGE_VERSION@
-xwayland=@xwayland_path@/Xwayland
-have_glamor=@have_glamor@
-have_eglstream=@have_eglstream@
-have_initfd=true
-have_listenfd=true
-have_verbose=true
-have_terminate_delay=true
-have_no_touch_pointer_emulation=true
-have_force_xrandr_emulation=true
-have_geometry=true
-have_fullscreen=true
-have_host_grab=true
-have_decorate=@have_libdecor@
-have_byteswappedclients=true