SDL: wayland: Fix build for configs without libdecor

SDL Commits
1 
From e4bb3c86496936c1b68141fc4db492426823bbdd Mon Sep 17 00:00:00 2001
From: Ethan Lee <[EMAIL REDACTED]>
Date: Wed, 11 May 2022 18:13:44 -0400
Subject: [PATCH] wayland: Fix build for configs without libdecor

---
 src/video/wayland/SDL_waylandwindow.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/src/video/wayland/SDL_waylandwindow.c b/src/video/wayland/SDL_waylandwindow.c
index 75ffe6a4bef..f5d598c62bc 100644
--- a/src/video/wayland/SDL_waylandwindow.c
+++ b/src/video/wayland/SDL_waylandwindow.c
@@ -1906,9 +1906,12 @@ int Wayland_CreateWindow(_THIS, SDL_Window *window)
 
     #define IS_POPUP(window) \
         (window->flags & (SDL_WINDOW_TOOLTIP | SDL_WINDOW_POPUP_MENU))
+#ifdef HAVE_LIBDECOR_H
     if (c->shell.libdecor && !IS_POPUP(window)) {
         data->shell_surface_type = WAYLAND_SURFACE_LIBDECOR;
-    } else if (c->shell.xdg) {
+    } else
+#endif
+    if (c->shell.xdg) {
         if (IS_POPUP(window)) {
             data->shell_surface_type = WAYLAND_SURFACE_XDG_POPUP;
         } else {