lightdm: Add patch to fix some warnings

pkgs/applications/display-managers/lightdm/default.nix

@@ -15,6 +15,8 @@ stdenv.mkDerivation rec {
     sha256 = "0f0c2irb7qq49dabxhh99bwyvkxpfpscy4vynm7y800sz15lm2hs";
   };
 
+  patches = [ ./fix-paths.patch ];
+
   buildInputs = [
     pkgconfig pam libxcb glib libXdmcp itstool libxml2 intltool libxklavier libgcrypt
     qt4

pkgs/applications/display-managers/lightdm/fix-paths.patch

@@ -0,0 +1,61 @@
+diff --git a/common/user-list.c b/common/user-list.c
+index 792c6d3..57fbfb7 100644
+--- a/common/user-list.c
++++ b/common/user-list.c
+@@ -331,7 +331,7 @@ load_passwd_file (CommonUserList *user_list, gboolean emit_add_signal)
+
+     value = g_key_file_get_string (config, "UserList", "hidden-shells", NULL);
+     if (!value)
+-        value = g_strdup ("/bin/false /usr/sbin/nologin");
++        value = g_strdup ("/run/current-system/sw/bin/nologin");
+     hidden_shells = g_strsplit (value, " ", -1);
+     g_free (value);
+
+diff --git a/src/seat.c b/src/seat.c
+index f9b149d..9029742 100644
+--- a/src/seat.c
++++ b/src/seat.c
+@@ -343,7 +343,7 @@ run_script (Seat *seat, DisplayServer *display_server, const gchar *script_name,
+
+     /* Set POSIX variables */
+     process_set_clear_environment (script, TRUE);
+-    process_set_env (script, "SHELL", "/bin/sh");
++    process_set_env (script, "SHELL", "/run/current-system/sw/bin/sh");
+
+     /* Variables required for regression tests */
+     if (g_getenv ("LIGHTDM_TEST_ROOT"))
+@@ -354,7 +354,7 @@ run_script (Seat *seat, DisplayServer *display_server, const gchar *script_name,
+         process_set_env (script, "PATH", g_getenv ("PATH"));
+     }
+     else
+-        process_set_env (script, "PATH", "/usr/local/bin:/usr/bin:/bin");
++        process_set_env (script, "PATH", "/run/current-system/sw/bin");
+
+     if (user)
+     {
+diff --git a/src/session-child.c b/src/session-child.c
+index e85f57d..93db0bd 100644
+--- a/src/session-child.c
++++ b/src/session-child.c
+@@ -410,7 +410,7 @@ session_child_run (int argc, char **argv)
+         else
+         {
+             /* Set POSIX variables */
+-            pam_putenv (pam_handle, "PATH=/usr/local/bin:/usr/bin:/bin");
++            pam_putenv (pam_handle, "PATH=/run/current-system/sw/bin");
+             pam_putenv (pam_handle, g_strdup_printf ("USER=%s", username));
+             pam_putenv (pam_handle, g_strdup_printf ("LOGNAME=%s", username));
+             pam_putenv (pam_handle, g_strdup_printf ("HOME=%s", user_get_home_directory (user)));
+diff --git a/src/shared-data-manager.c b/src/shared-data-manager.c
+index 47f1c10..cc82652 100644
+--- a/src/shared-data-manager.c
++++ b/src/shared-data-manager.c
+@@ -68,7 +68,7 @@ delete_unused_user (gpointer key, gpointer value, gpointer user_data)
+
+     gchar *path = g_build_filename (USERS_DIR, user, NULL);
+     gchar *quoted_path = g_shell_quote (path);
+-    gchar *cmd = g_strdup_printf ("/bin/rm -rf %s", quoted_path);
++    gchar *cmd = g_strdup_printf ("/run/current-system/sw/bin/rm -rf %s", quoted_path);
+
+     g_spawn_command_line_async (cmd, &error);
+     if (error)