diff --git a/cmake/platform.cmake b/cmake/platform.cmake
index 19f5342..e5766c7 100644
--- a/cmake/platform.cmake
+++ b/cmake/platform.cmake
@@ -1,10 +1,22 @@
-find_package(X11)
-if (X11_FOUND)
-    include(${CMAKE_CURRENT_LIST_DIR}/platform_x11.cmake)
-elseif (Q_WS_WIN OR WIN32)
-    include(${CMAKE_CURRENT_LIST_DIR}/platform_win.cmake)
-elseif (Q_OS_MAC OR APPLE)
+option(platform_found "platform search" OFF)
+
+if (Q_OS_MAC OR APPLE)
     include(${CMAKE_CURRENT_LIST_DIR}/platform_mac.cmake)
-else()
+    set(platform_found ON)
+endif()
+if (Q_WS_WIN OR WIN32)
+    include(${CMAKE_CURRENT_LIST_DIR}/platform_win.cmake)
+    set(platform_found ON)
+endif()
+
+if (NOT platform_found)
+    find_package(X11)
+    if (X11_FOUND)
+        include(${CMAKE_CURRENT_LIST_DIR}/platform_x11.cmake)
+        set(platform_found ON)
+    endif()
+endif()
+
+if (NOT platform_found)
     message(FATAL_ERROR "Unsupported platform! Supported are Windows, OS X, Linux/X11.")
 endif()