--- CMakeLists.txt.orig	2016-03-04 21:42:31.724356963 +0000
+++ CMakeLists.txt	2016-03-04 21:44:48.254713994 +0000
@@ -376,6 +376,7 @@
 set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${WARNING_FLAGS_C} ${MSVC_FLAGS} -D_REENTRANT")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${WARNING_FLAGS_CXX} ${MSVC_FLAGS} -D_REENTRANT ${BOOST_CXX_FLAGS}")
 set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${MSVC_LD_FLAGS}")
+set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -lX11")
 
 include_directories(${OPENSCENEGRAPH_INCLUDE_DIRS}
     ${Boost_INCLUDE_DIRS}