From 40ef48c224b1e527eeb9094bdd7ce3aa69db1532 Mon Sep 17 00:00:00 2001
From: Surajjalpun2002 <itssurajthakur2002@gmail.com>
Date: Sun, 22 Oct 2023 19:17:20 +0530
Subject: [PATCH] changes regarding use of constexpr in case of constant
 variables

Signed-off-by: Surajjalpun2002 <itssurajthakur2002@gmail.com>
---
 avogadro/io/cmlformat.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/avogadro/io/cmlformat.cpp b/avogadro/io/cmlformat.cpp
index 20da702607..a46b335c99 100644
--- a/avogadro/io/cmlformat.cpp
+++ b/avogadro/io/cmlformat.cpp
@@ -27,7 +27,7 @@
 #include <streambuf>
 
 #ifndef M_PI
-#define M_PI 3.14159265358979323846
+constexpr double M_PI = 3.14159265358979323846;
 #endif
 
 namespace Avogadro::Io {