From d28110b8784ba84f274bce3a8dfea5aa9642d243 Mon Sep 17 00:00:00 2001
From: Qianqian Fang <fangqq@gmail.com>
Date: Fri, 29 Nov 2024 18:16:58 -0500
Subject: [PATCH] [ci] fix windows-2019 gcc error

---
 src/mmc_rand_common.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/mmc_rand_common.h b/src/mmc_rand_common.h
index 13b14f0f..3422ed6f 100644
--- a/src/mmc_rand_common.h
+++ b/src/mmc_rand_common.h
@@ -38,6 +38,10 @@
 #ifndef _MMC_RNG_COMMON_H
 #define _MMC_RNG_COMMON_H
 
+#ifndef M_PI
+    #define M_PI 3.14159265358979323846
+#endif
+
 #define TWO_PI     (M_PI*2.0)
 #define EPS        1e-6f
 #define EPS2       0.1*EPS