meson: Use feature for GStreamer and make it auto

Bumping version dependency of meson

Fix minor new warning in meson

src/daemon/meson.build

@@ -13,12 +13,11 @@ pipewire_c_args = [
   '-DG_LOG_DOMAIN=g_log_domain_pipewire',
 ]
 
-conf_config = configuration_data()
 conf_install_dir = join_paths(get_option('sysconfdir'), 'pipewire')
 
 configure_file(input : 'pipewire.conf.in',
                output : 'pipewire.conf',
-               configuration : conf_config,
+               copy : true,
                install_dir : conf_install_dir)
 
 

src/meson.build

@@ -6,6 +6,6 @@ subdir('tools')
 subdir('modules')
 subdir('examples')
 
-if get_option('gstreamer')
+if build_gst
   subdir('gst')
 endif