--- Opcodes/stk/CMakeLists.txt.orig	2018-11-17 19:16:54 UTC
+++ Opcodes/stk/CMakeLists.txt
@@ -4,7 +4,7 @@ if(WIN32)
     cmake_policy(SET CMP0060 NEW)
 endif()
 
-if(NOT STK_LOCAL)
+if(BUILD_STK_OPCODES AND NOT STK_LOCAL)
     find_package(STK)
 endif()