From 11c9f32c0f99082adeb8e85b7c022a9c1f9126f1 Mon Sep 17 00:00:00 2001
From: eirrgang <eirrgang@umich.edu>
Date: Wed, 1 Mar 2017 04:53:38 -0500
Subject: [PATCH] fix python version check (#705)

Commit 11a337f1 added major and minor python version
checking to cast.h but does not use the macros defined
via the Python.h inclusion. This may be due to an
intention to use the variables defined by the cmake
module FindPythonInterpreter, but nothing in the
pybind11 repo does anything to convert the cmake
variables to preprocessor defines.
---
 include/pybind11/cast.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/pybind11/cast.h b/include/pybind11/cast.h
index b7128d18..30966006 100644
--- a/include/pybind11/cast.h
+++ b/include/pybind11/cast.h
@@ -646,14 +646,14 @@ struct type_caster<std::basic_string<CharT, Traits, Allocator>, enable_if_t<is_s
     using StringType = std::basic_string<CharT, Traits, Allocator>;
 
     bool load(handle src, bool) {
-#if PY_VERSION_MAJOR < 3
+#if PY_MAJOR_VERSION < 3
         object temp;
 #endif
         handle load_src = src;
         if (!src) {
             return false;
         } else if (!PyUnicode_Check(load_src.ptr())) {
-#if PY_VERSION_MAJOR >= 3
+#if PY_MAJOR_VERSION >= 3
             return false;
             // The below is a guaranteed failure in Python 3 when PyUnicode_Check returns false
 #else