From f203ca78a2af17efb3942752d32d6889dbf6b585 Mon Sep 17 00:00:00 2001
From: terminx <terminx@1a8010ca-5511-0410-912e-c29ae57300e0>
Date: Thu, 21 Sep 2017 04:32:14 +0000
Subject: [PATCH] Amend r6439

git-svn-id: https://svn.eduke32.com/eduke32@6444 1a8010ca-5511-0410-912e-c29ae57300e0
---
 source/build/src/sdlayer.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/source/build/src/sdlayer.cpp b/source/build/src/sdlayer.cpp
index 7f99a0754..d9593033e 100644
--- a/source/build/src/sdlayer.cpp
+++ b/source/build/src/sdlayer.cpp
@@ -438,7 +438,9 @@ int main(int argc, char *argv[])
     if ((argp = Bgetenv("BUILD_NOFOG")) != NULL)
         nofog = Batol(argp);
 
-    putenv("__GL_THREADED_OPTIMIZATIONS=1");
+#ifndef _WIN32
+    setenv("__GL_THREADED_OPTIMIZATIONS", "1", 0);
+#endif
 #endif
 
     buildkeytranslationtable();