install session files conditionally based on the available session types

data/session/Makefile.mk

@@ -1,5 +1,11 @@
+if ! HAVE_WAYLAND_ONLY
 xsessionfilesdir = $(datadir)/xsessions
 xsessionfiles_DATA = data/session/enlightenment.desktop
+endif
+
+if HAVE_WAYLAND
 wlsessionfilesdir = $(datadir)/wayland-sessions
 wlsessionfiles_DATA = data/session/enlightenment.desktop
+endif
+
 EXTRA_DIST += data/session/enlightenment.desktop.in

data/session/meson.build

@@ -5,8 +5,12 @@ e_desktop = configure_file(input        : 'enlightenment.desktop.in',
                configuration: desktop_config
               )
 
-install_data(e_desktop,
-	install_dir  : join_paths(dir_data, 'xsessions'))
+if config_h.has('HAVE_WAYLAND_ONLY') == false
+	install_data(e_desktop,
+		install_dir  : join_paths(dir_data, 'xsessions'))
+endif
 
-install_data(e_desktop,
-	install_dir  : join_paths(dir_data, 'wayland-sessions'))
+if config_h.has('HAVE_WAYLAND') == false
+	install_data(e_desktop,
+		install_dir  : join_paths(dir_data, 'wayland-sessions'))
+endif