[gnome-session] Install g-s-c-s only together with g-s-s

[Ray Strode <halfline src gnome org>]

commit caf708c65ae679d36b07d3704dd2668b650676b9
Author: Akbarkhon Variskhanov <akbarkhon variskhanov gmail com>
Date:   Sat Jun 25 17:53:42 2022 +0500

    Install g-s-c-s only together with g-s-s

 tools/meson.build | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/tools/meson.build b/tools/meson.build
index 68be8a4a..b21519da 100644
--- a/tools/meson.build
+++ b/tools/meson.build
@@ -1,8 +1,3 @@
-install_data(
-  'gnome-session-custom-session',
-  install_dir: session_bindir
-)
-
 deps = session_deps + [
   sm_dep,
   ice_dep
@@ -26,6 +21,11 @@ if enable_session_selector
     gtk_dep
   ]
 
+  install_data(
+    'gnome-session-custom-session',
+    install_dir: session_bindir
+  )
+
   cflags += '-DGTKBUILDER_DIR="@0@"'.format(session_pkgdatadir)
 
   programs += [['gnome-session-selector', deps, cflags, session_bindir]]