Fix problem with incomplete types with older clang versions (#1174)

also added the PYTHON_DISABLE_VERSIONS cmake variable to disable python versions.

cmake/PythonModules.cmake

@@ -54,6 +54,10 @@ function(py_add_module NAME)
 
 endfunction()
 set(PYTHON_SEARCH_VERSIONS 2.7 3.5 3.6 3.7 3.8 3.9)
+set(PYTHON_DISABLE_VERSIONS "" CACHE STRING "")
+foreach(PYTHON_DISABLE_VERSION ${PYTHON_DISABLE_VERSIONS})
+    list(REMOVE_ITEM PYTHON_SEARCH_VERSIONS ${PYTHON_DISABLE_VERSION})
+endforeach()
 
 set(_PYTHON_VERSIONS)
 foreach(PYTHON_VERSION ${PYTHON_SEARCH_VERSIONS})

src/py/migraphx_py.cpp

@@ -7,6 +7,7 @@
 #include <migraphx/operation.hpp>
 #include <migraphx/quantization.hpp>
 #include <migraphx/generate.hpp>
+#include <migraphx/instruction.hpp>
 #include <migraphx/ref/target.hpp>
 #include <migraphx/stringutils.hpp>
 #include <migraphx/tf.hpp>