From 27caf4b87de1979fc5c5070b045e988a2b1e436c Mon Sep 17 00:00:00 2001
From: Ralph Sennhauser <ralph.sennhauser@gmail.com>
Date: Mon, 28 Jul 2025 18:51:47 +0200
Subject: [PATCH] Add mising const in Ogre

Add the required const to operator == as required and warned about
with C++20.

Signed-off-by: Ralph Sennhauser <ralph.sennhauser@gmail.com>
---
 source/third_party/ogre3d_preprocessor/OgreGLSLPreprocessor.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/third_party/ogre3d_preprocessor/OgreGLSLPreprocessor.h b/source/third_party/ogre3d_preprocessor/OgreGLSLPreprocessor.h
index 29b949257c..33847d880d 100644
--- a/source/third_party/ogre3d_preprocessor/OgreGLSLPreprocessor.h
+++ b/source/third_party/ogre3d_preprocessor/OgreGLSLPreprocessor.h
@@ -168,7 +168,7 @@ namespace Ogre
             void SetValue (long iValue);
 
             /// Test two tokens for equality
-            bool operator == (const Token &iOther)
+            bool operator == (const Token &iOther) const
             {
                 if (iOther.Length != Length)
                     return false;