--- ./src/CMakeLists.txt.orig	2011-03-05 19:10:11.000000000 +0000
+++ ./src/CMakeLists.txt	2013-03-17 00:48:41.239852359 +0000
@@ -14,6 +14,7 @@
 if(UNIX)
    find_package(X11)
    set(optionalLibs ${optionalLibs} ${X11_X11_LIB})
+   include_directories(${X11_INCLUDE_DIR})
 endif(UNIX)