Cmake: Add files needed to build with Mir

Change-Id: I640e45db5d586a379674fb209e38075ba7f0cf29

CMakeLists.txt

@@ -17,8 +17,8 @@ find_package(PythonInterp 3 REQUIRED)
 if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
     option(BUILD_WSI_XCB_SUPPORT "Build XCB WSI support" ON)
     option(BUILD_WSI_XLIB_SUPPORT "Build Xlib WSI support" ON)
-    option(BUILD_WSI_WAYLAND_SUPPORT "Build Wayland WSI support" OFF)
-    option(BUILD_WSI_MIR_SUPPORT "Build Mir WSI support" OFF)
+    option(BUILD_WSI_WAYLAND_SUPPORT "Build Wayland WSI support" ON)
+    option(BUILD_WSI_MIR_SUPPORT "Build Mir WSI support" ON)
 endif()
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

cmake/FindMir.cmake

@@ -0,0 +1,37 @@
+# Try to find Mir on a Unix system
+#
+# This will define:
+#
+#   MIR_FOUND       - System has Mir
+#   MIR_LIBRARIES   - Link these to use Mir
+#   MIR_INCLUDE_DIR - Include directory for Mir
+#   MIR_DEFINITIONS - Compiler switches required for using Mir
+
+if (NOT WIN32)
+
+  find_package (PkgConfig)
+  pkg_check_modules (PKG_MIR QUIET mirclient)
+  set(MIR_DEFINITIONS ${PKG_MIR_CFLAGS_OTHER})
+
+  find_path(MIR_INCLUDE_DIR
+      NAMES xkbcommon/xkbcommon.h
+      HINTS ${PC_XKBCOMMON_INCLUDE_DIR} ${PC_XKBCOMMON_INCLUDE_DIRS}
+  )
+
+  find_library(MIR_LIBRARY
+      NAMES mirclient
+      HINTS ${PKG_MIR_LIBRARIES} ${MIR_LIBRARY_DIRS}
+  )
+
+  set (MIR_INCLUDE_DIR ${PKG_MIR_INCLUDE_DIRS})
+  set (MIR_LIBRARIES   ${MIR_LIBRARY})
+
+  include (FindPackageHandleStandardArgs)
+  find_package_handle_standard_args (MIR DEFAULT_MSG
+      MIR_LIBRARIES
+      MIR_INCLUDE_DIR
+  )
+
+  mark_as_advanced (MIR_LIBRARIES MIR_INCLUDE_DIR)
+
+endif ()

loader/CMakeLists.txt

@@ -22,6 +22,8 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
 
     if (BUILD_WSI_MIR_SUPPORT)
         add_definitions(-DVK_USE_PLATFORM_MIR_KHR)
+        find_package(Mir REQUIRED)
+        include_directories(${MIR_INCLUDE_DIR})
     endif()
 else()
     message(FATAL_ERROR "Unsupported Platform!")

tests/CMakeLists.txt

@@ -20,6 +20,8 @@ elseif(CMAKE_SYSTEM_NAME STREQUAL "Linux")
 
     if (BUILD_WSI_MIR_SUPPORT)
         add_definitions(-DVK_USE_PLATFORM_MIR_KHR)
+        find_package(Mir REQUIRED)
+        include_directories(${MIR_INCLUDE_DIR})
     endif()
 else()
     message(FATAL_ERROR "Unsupported Platform!")