build: Only inlcude wayland if enabled for MockICD
diff --git a/icd/CMakeLists.txt b/icd/CMakeLists.txt
index 6bafb3a..4a64215 100644
--- a/icd/CMakeLists.txt
+++ b/icd/CMakeLists.txt
@@ -90,10 +90,12 @@
 
 include_directories(${CMAKE_CURRENT_SOURCE_DIR}
                     ${CMAKE_CURRENT_SOURCE_DIR}/generated
-                    ${WAYLAND_CLIENT_INCLUDE_DIR}
                     ${CMAKE_CURRENT_BINARY_DIR}
                     ${PROJECT_BINARY_DIR}
                     ${CMAKE_BINARY_DIR})
+if(BUILD_WSI_WAYLAND_SUPPORT)
+    include_directories(${WAYLAND_CLIENT_INCLUDE_DIR})
+endif()
 
 if(WIN32)
     set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -D_CRT_SECURE_NO_WARNINGS")