Index: lldb/cmake/modules/FindLuaAndSwig.cmake
===================================================================
--- lldb/cmake/modules/FindLuaAndSwig.cmake
+++ lldb/cmake/modules/FindLuaAndSwig.cmake
@@ -17,7 +17,7 @@
         SWIG_EXECUTABLE)
     endif()
   else()
-    message(STATUS "SWIG 2 or later is required for Lua support in LLDB but could not be found")
+    message(FATAL_ERROR "SWIG 2 or later is required for Lua support in LLDB but could not be found")
   endif()
 
   include(FindPackageHandleStandardArgs)
Index: lldb/cmake/modules/FindPythonInterpAndLibs.cmake
===================================================================
--- lldb/cmake/modules/FindPythonInterpAndLibs.cmake
+++ lldb/cmake/modules/FindPythonInterpAndLibs.cmake
@@ -44,7 +44,7 @@
       endif()
     endif()
   else()
-    message(STATUS "SWIG 2 or later is required for Python support in LLDB but could not be found")
+    message(FATAL_ERROR "SWIG 2 or later is required for Python support in LLDB but could not be found")
   endif()
 
   include(FindPackageHandleStandardArgs)