From f3b0a857c455294d4a311b2dbefcf9eaeb0d49e8 Mon Sep 17 00:00:00 2001
From: ts-korhonen <teemu.s.korhonen@gmail.com>
Date: Wed, 15 Dec 2021 00:50:46 +0200
Subject: [PATCH] Define M_PI on sdl_joystick.cpp if undefined

---
 src/qt/sdl_joystick.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/qt/sdl_joystick.cpp b/src/qt/sdl_joystick.cpp
index 5a8100ee5..e698a121c 100644
--- a/src/qt/sdl_joystick.cpp
+++ b/src/qt/sdl_joystick.cpp
@@ -14,6 +14,10 @@ static SDL_Joystick *sdl_joy[MAX_PLAT_JOYSTICKS];
 
 #include <algorithm>
 
+#ifndef M_PI
+#define M_PI    3.14159265358979323846
+#endif
+
 void joystick_init() {
     if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) != 0) {
         return;