From 9f8cb672d20183b8fbeb44ddb6223067f823dd06 Mon Sep 17 00:00:00 2001
From: beaglejoe <beaglejoe@30fe4595-0a0c-4342-8851-515496e4dcbd>
Date: Wed, 18 May 2022 02:18:18 +0000
Subject: [PATCH] Fix for older compilers

git-svn-id: https://svn.code.sf.net/p/speed-dreams/code/trunk@8167 30fe4595-0a0c-4342-8851-515496e4dcbd

Former-commit-id: ad1572438cb7e5d9315ae281fababda9b5f0caa7
Former-commit-id: 426902ce5e56034701677be94495282587fc501b
---
 src/tools/accc/ac3dload.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tools/accc/ac3dload.cpp b/src/tools/accc/ac3dload.cpp
index 16b1f1841..b7698e461 100644
--- a/src/tools/accc/ac3dload.cpp
+++ b/src/tools/accc/ac3dload.cpp
@@ -461,7 +461,7 @@ int computeNorm(const point_t &pv1, const point_t &pv2, const point_t &pv3, poin
     norm.y = (p3 * q1 - q3 * p1) / dd;
     norm.z = (p1 * q2 - q1 * p2) / dd;
 
-    if (std::isnan(norm.x) || std::isnan(norm.y) || std::isnan(norm.z))
+    if (isnan(norm.x) || isnan(norm.y) || isnan(norm.z))
     {
         norm.set(0.0, 1.0, 0.0);
         return 0;