Index: lldb/trunk/cmake/modules/LLDBConfig.cmake
===================================================================
--- lldb/trunk/cmake/modules/LLDBConfig.cmake
+++ lldb/trunk/cmake/modules/LLDBConfig.cmake
@@ -198,7 +198,8 @@
     find_package(PythonLibs REQUIRED)
   endif()
 
-  if (NOT PYTHON_VERSION_STRING VERSION_EQUAL PYTHONLIBS_VERSION_STRING)
+  if (NOT PYTHON_VERSION_STRING VERSION_EQUAL PYTHONLIBS_VERSION_STRING AND
+      NOT CMAKE_CROSSCOMPILING)
     message(FATAL_ERROR "Found incompatible Python interpreter (${PYTHON_VERSION_STRING}) and Python libraries (${PYTHONLIBS_VERSION_STRING})")
   endif()