From 74f673e23ce3a771fb616f558add2471fc75b577 Mon Sep 17 00:00:00 2001
From: Loki <loki@fakeemail.com>
Date: Tue, 31 Aug 2021 21:19:02 +0200
Subject: [PATCH] Fix build for SUNSHINE_ENABLE_WAYLAND=OFF

---
 CMakeLists.txt                    | 12 +++++++---
 sunshine/platform/linux/wayland.h | 39 +++++++++++++++++++++++++++++++
 2 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 275be431..17a57fa9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -108,12 +108,18 @@ else()
 
 	if(${SUNSHINE_ENABLE_X11})
 		find_package(X11)
+	else()
+		set(X11_FOUND OFF)
 	endif()
 	if(${SUNSHINE_ENABLE_DRM})
 		find_package(LIBDRM)
+	else()
+		set(LIBDRM_FOUND OFF)
 	endif()
 	if(${SUNSHINE_ENABLE_WAYLAND})
 		find_package(Wayland)
+	else()
+		set(WAYLAND_FOUND OFF)
 	endif()
 
 	find_package(FFMPEG REQUIRED)
@@ -165,11 +171,10 @@ else()
 		list(APPEND PLATFORM_LIBRARIES ${WAYLAND_LIBRARIES})
 		list(APPEND PLATFORM_TARGET_FILES
 			sunshine/platform/linux/wlgrab.cpp
-			sunshine/platform/linux/wayland.cpp
-			sunshine/platform/linux/wayland.h)
+			sunshine/platform/linux/wayland.cpp)
 	endif()
 	if(NOT ${X11_FOUND} AND NOT ${LIBDRM_FOUND} AND NOT ${WAYLAND_FOUND})
-		message(FATAL_ERROR "Couldn't find either x11 or libdrm")
+		message(FATAL_ERROR "Couldn't find either x11, wayland or libdrm")
 	endif()
 
 	list(APPEND PLATFORM_TARGET_FILES
@@ -183,6 +188,7 @@ else()
 		sunshine/platform/linux/audio.cpp
 		sunshine/platform/linux/input.cpp
 		sunshine/platform/linux/x11grab.h
+		sunshine/platform/linux/wayland.h
 		third-party/glad/src/egl.c
 		third-party/glad/src/gl.c
 		third-party/glad/include/EGL/eglplatform.h
diff --git a/sunshine/platform/linux/wayland.h b/sunshine/platform/linux/wayland.h
index 67bfa884..3b961349 100644
--- a/sunshine/platform/linux/wayland.h
+++ b/sunshine/platform/linux/wayland.h
@@ -3,11 +3,19 @@
 
 #include <bitset>
 
+#ifdef SUNSHINE_BUILD_WAYLAND
 #include <wlr-export-dmabuf-unstable-v1.h>
 #include <xdg-output-unstable-v1.h>
+#endif
 
 #include "graphics.h"
 
+/**
+ * The classes defined in this macro block should only be used by
+ * cpp files whose compilation depends on SUNSHINE_BUILD_WAYLAND
+ */
+#ifdef SUNSHINE_BUILD_WAYLAND
+
 namespace wl {
 using display_internal_t = util::safe_ptr<wl_display, wl_display_disconnect>;
 
@@ -179,5 +187,36 @@ std::vector<std::unique_ptr<monitor_t>> monitors(const char *display_name = null
 
 int init();
 } // namespace wl
+#else
+
+struct wl_output;
+struct zxdg_output_manager_v1;
+
+namespace wl {
+class monitor_t {
+public:
+  monitor_t(monitor_t &&)      = delete;
+  monitor_t(const monitor_t &) = delete;
+
+  monitor_t &operator=(const monitor_t &) = delete;
+  monitor_t &operator=(monitor_t &&) = delete;
+
+  monitor_t(wl_output *output);
+
+  void listen(zxdg_output_manager_v1 *output_manager);
+
+  wl_output *output;
+
+  std::string name;
+  std::string description;
+
+  platf::touch_port_t viewport;
+};
+
+inline std::vector<std::unique_ptr<monitor_t>> monitors(const char *display_name = nullptr) { return {}; }
+
+inline int init() { return -1; }
+} // namespace wl
+#endif
 
 #endif
\ No newline at end of file