wayland: Use modules from ECM for finding deps

We were using a copied FindWayland cmake script, but lets use the ones
from ECM (extra-cmake-modules) instead. This is more important in the
future when building extensions from wayland-protocols.

CMake/modules/FindWayland.cmake

@@ -1,66 +0,0 @@
-# Try to find Wayland on a Unix system
-#
-# This will define:
-#
-#   WAYLAND_FOUND       - True if Wayland is found
-#   WAYLAND_LIBRARIES   - Link these to use Wayland
-#   WAYLAND_INCLUDE_DIR - Include directory for Wayland
-#   WAYLAND_DEFINITIONS - Compiler flags for using Wayland
-#
-# In addition the following more fine grained variables will be defined:
-#
-#   WAYLAND_CLIENT_FOUND  WAYLAND_CLIENT_INCLUDE_DIR  WAYLAND_CLIENT_LIBRARIES
-#   WAYLAND_SERVER_FOUND  WAYLAND_SERVER_INCLUDE_DIR  WAYLAND_SERVER_LIBRARIES
-#   WAYLAND_EGL_FOUND     WAYLAND_EGL_INCLUDE_DIR     WAYLAND_EGL_LIBRARIES
-#
-# Copyright (c) 2013 Martin Gräßlin <mgraesslin@kde.org>
-#
-# Redistribution and use is allowed according to the terms of the BSD license.
-# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
-
-IF (NOT WIN32)
-  IF (WAYLAND_INCLUDE_DIR AND WAYLAND_LIBRARIES)
-    # In the cache already
-    SET(WAYLAND_FIND_QUIETLY TRUE)
-  ENDIF ()
-
-  # Use pkg-config to get the directories and then use these values
-  # in the FIND_PATH() and FIND_LIBRARY() calls
-  FIND_PACKAGE(PkgConfig)
-  PKG_CHECK_MODULES(PKG_WAYLAND QUIET wayland-client wayland-server wayland-egl wayland-cursor)
-
-  SET(WAYLAND_DEFINITIONS ${PKG_WAYLAND_CFLAGS})
-
-  FIND_PATH(WAYLAND_CLIENT_INCLUDE_DIR  NAMES wayland-client.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
-  FIND_PATH(WAYLAND_SERVER_INCLUDE_DIR  NAMES wayland-server.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
-  FIND_PATH(WAYLAND_EGL_INCLUDE_DIR     NAMES wayland-egl.h    HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
-  FIND_PATH(WAYLAND_CURSOR_INCLUDE_DIR  NAMES wayland-cursor.h HINTS ${PKG_WAYLAND_INCLUDE_DIRS})
-
-  FIND_LIBRARY(WAYLAND_CLIENT_LIBRARIES NAMES wayland-client   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
-  FIND_LIBRARY(WAYLAND_SERVER_LIBRARIES NAMES wayland-server   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
-  FIND_LIBRARY(WAYLAND_EGL_LIBRARIES    NAMES wayland-egl      HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
-  FIND_LIBRARY(WAYLAND_CURSOR_LIBRARIES NAMES wayland-cursor   HINTS ${PKG_WAYLAND_LIBRARY_DIRS})
-
-  set(WAYLAND_INCLUDE_DIR ${WAYLAND_CLIENT_INCLUDE_DIR} ${WAYLAND_SERVER_INCLUDE_DIR} ${WAYLAND_EGL_INCLUDE_DIR} ${WAYLAND_CURSOR_INCLUDE_DIR})
-
-  set(WAYLAND_LIBRARIES ${WAYLAND_CLIENT_LIBRARIES} ${WAYLAND_SERVER_LIBRARIES} ${WAYLAND_EGL_LIBRARIES} ${WAYLAND_CURSOR_LIBRARIES})
-
-  list(REMOVE_DUPLICATES WAYLAND_INCLUDE_DIR)
-
-  include(FindPackageHandleStandardArgs)
-
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_CLIENT  DEFAULT_MSG  WAYLAND_CLIENT_LIBRARIES  WAYLAND_CLIENT_INCLUDE_DIR)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_SERVER  DEFAULT_MSG  WAYLAND_SERVER_LIBRARIES  WAYLAND_SERVER_INCLUDE_DIR)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_EGL     DEFAULT_MSG  WAYLAND_EGL_LIBRARIES     WAYLAND_EGL_INCLUDE_DIR)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND_CURSOR  DEFAULT_MSG  WAYLAND_CURSOR_LIBRARIES  WAYLAND_CURSOR_INCLUDE_DIR)
-  FIND_PACKAGE_HANDLE_STANDARD_ARGS(WAYLAND         DEFAULT_MSG  WAYLAND_LIBRARIES         WAYLAND_INCLUDE_DIR)
-
-  MARK_AS_ADVANCED(
-        WAYLAND_INCLUDE_DIR         WAYLAND_LIBRARIES
-        WAYLAND_CLIENT_INCLUDE_DIR  WAYLAND_CLIENT_LIBRARIES
-        WAYLAND_SERVER_INCLUDE_DIR  WAYLAND_SERVER_LIBRARIES
-        WAYLAND_EGL_INCLUDE_DIR     WAYLAND_EGL_LIBRARIES
-        WAYLAND_CURSOR_INCLUDE_DIR  WAYLAND_CURSOR_LIBRARIES
-  )
-
-ENDIF ()

CMakeLists.txt

@@ -271,11 +271,15 @@ endif()
 # Use Wayland for window creation
 #--------------------------------------------------------------------
 if (_GLFW_WAYLAND)
+    find_package(ECM REQUIRED NO_MODULE)
+    set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH})
+
     find_package(Wayland REQUIRED)
+
     list(APPEND glfw_PKG_DEPS "wayland-egl")
 
-    list(APPEND glfw_INCLUDE_DIRS "${WAYLAND_INCLUDE_DIR}")
+    list(APPEND glfw_INCLUDE_DIRS "${Wayland_INCLUDE_DIR}")
-    list(APPEND glfw_LIBRARIES "${WAYLAND_LIBRARIES}" "${CMAKE_THREAD_LIBS_INIT}")
+    list(APPEND glfw_LIBRARIES "${Wayland_LIBRARIES}" "${CMAKE_THREAD_LIBS_INIT}")
 
     find_package(XKBCommon REQUIRED)
     list(APPEND glfw_PKG_DEPS "xkbcommon")