From e009bcbe7ccb2ebcc2a2bcf1286f7755209b6bac Mon Sep 17 00:00:00 2001
From: Aaron Brady <abrady@meta.com>
Date: Mon, 19 Feb 2024 22:29:16 -0800
Subject: [PATCH] Update hash.hpp to detect msvc

this causes errors when building on windows with cl
---
 glm/gtx/hash.hpp | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/glm/gtx/hash.hpp b/glm/gtx/hash.hpp
index ef89290b..a2ac9892 100644
--- a/glm/gtx/hash.hpp
+++ b/glm/gtx/hash.hpp
@@ -40,8 +40,18 @@
 #include "../mat4x3.hpp"
 #include "../mat4x4.hpp"
 
-#if __cplusplus < 201103L
-#pragma message("GLM_GTX_hash requires C++11 standard library support")
+#if defined(_MSC_VER)
+    // MSVC uses _MSVC_LANG instead of __cplusplus
+    #if _MSVC_LANG < 201103L
+        #pragma message("GLM_GTX_hash requires C++11 standard library support")
+    #endif
+#elif defined(__GNUC__) || defined(__clang__)
+    // GNU and Clang use __cplusplus
+    #if __cplusplus < 201103L
+        #pragma message("GLM_GTX_hash requires C++11 standard library support")
+    #endif
+#else
+    #error "Unknown compiler"
 #endif
 
 #if GLM_LANG & GLM_LANG_CXX11