From 12a46743b3c379847e300d2af4e4c932f64dc593 Mon Sep 17 00:00:00 2001
From: Hiroshi Horii <horii@jp.ibm.com>
Date: Wed, 22 Mar 2023 11:07:26 +0900
Subject: [PATCH] use _OPENMP to select omp_set_max_active_levels or
 omp_set_nested

---
 src/controllers/aer_controller.hpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/controllers/aer_controller.hpp b/src/controllers/aer_controller.hpp
index 3fdbddf7c1..63c662a739 100644
--- a/src/controllers/aer_controller.hpp
+++ b/src/controllers/aer_controller.hpp
@@ -963,10 +963,10 @@ Result Controller::execute(std::vector<Circuit> &circuits,
       parallel_nested_ = true;
 
       // nested should be set to zero if num_threads clause will be used
-#if defined(_WIN64) || defined(_WIN32)
-      omp_set_nested(0);
-#else
+#ifdef _OPENMP >= 200805
       omp_set_max_active_levels(0);
+#else
+      omp_set_nested(0);
 #endif
 
       result.metadata.add(parallel_nested_, "omp_nested");