SDLvncviewer: enable the X11 clipboard if X11 was found

CMakeLists.txt

@@ -37,6 +37,7 @@ option(WITH_ZLIB "Search for the zlib compression library to support additional
 option(WITH_JPEG "Search for the libjpeg compression library to support additional encodings" ON)
 option(WITH_PNG "Search for the PNG compression library to support additional encodings" ON)
 option(WITH_SDL "Search for the Simple Direct Media Layer library to build an example SDL vnc client" ON)
+option(WITH_X11 "Search for X11 to build the example SDL vnc client with clipboard support" ON)
 option(WITH_THREADS "Search for a threading library to build with multithreading support" ON)
 option(WITH_GNUTLS "Search for the GnuTLS secure communications library to support encryption" ON)
 option(WITH_OPENSSL "Search for the OpenSSL cryptography library to support encryption" ON)
@@ -104,6 +105,11 @@ if(WITH_SDL)
 endif(WITH_SDL)
 
 
+if(WITH_X11)
+  find_package(X11)
+endif(WITH_X11)
+
+
 if(WITH_THREADS)
   find_package(Threads)
 endif(WITH_THREADS)
@@ -503,7 +509,7 @@ foreach(e ${LIBVNCCLIENT_EXAMPLES})
   add_executable(client_examples_${e} ${LIBVNCCLIEXAMPLE_DIR}/${e}.c ${LIBVNCCLIEXAMPLE_DIR}/${${e}_EXTRA_SOURCES} )
   set_target_properties(client_examples_${e} PROPERTIES OUTPUT_NAME ${e})
   set_target_properties(client_examples_${e} PROPERTIES RUNTIME_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/client_examples)
-  target_link_libraries(client_examples_${e} vncclient ${CMAKE_THREAD_LIBS_INIT} ${SDL_LIBRARY} ${FFMPEG_LIBRARIES})
+  target_link_libraries(client_examples_${e} vncclient ${CMAKE_THREAD_LIBS_INIT} ${SDL_LIBRARY} ${X11_LIBRARIES} ${FFMPEG_LIBRARIES})
 endforeach(e ${LIBVNCCLIENT_EXAMPLES})
 
 

client_examples/scrap.c

@@ -14,7 +14,7 @@
 #include "rfb/rfbconfig.h"
 
 /* Determine what type of clipboard we are using */
-#if defined(__unix__) && !defined(__QNXNTO__) && defined(LIBVNCSERVER_HAVE_X11)
+#if defined(__unix__) && !defined(__QNXNTO__) && defined(SDL_VIDEO_DRIVER_X11)
 #define X11_SCRAP
 #elif defined(__WIN32__)
 #define WIN_SCRAP