From: Andreas Beckmann <anbe@debian.org>
Date: Thu, 11 Jun 2020 19:11:23 +0000 (+0100)
Subject: set __GLVND_DISALLOW_PATCHING=1 before loading glvnd libraries
X-Git-Tag: archive/raspbian/0_20150328-12+rpi1~1^2~5
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=4a3b3ba1a9a14798ff8fcaee53de587e32556ad1;p=primus.git

set __GLVND_DISALLOW_PATCHING=1 before loading glvnd libraries


Gbp-Pq: Name glvnd.patch
---

diff --git a/libglfork.cpp b/libglfork.cpp
index 03f514f..270918e 100644
--- a/libglfork.cpp
+++ b/libglfork.cpp
@@ -165,6 +165,9 @@ struct ContextsInfo: public std::map<GLXContext, ContextInfo> {
 struct EarlyInitializer {
   EarlyInitializer(const char **adpy_strp, const char **libgla_strp)
   {
+    // Allow multiple glvnd libGL.so.1 instances to be loaded into a process
+    // and OpenGL calls dispatched to them depending on context.
+    setenv("__GLVND_DISALLOW_PATCHING", "1", 0);
 #ifdef BUMBLEBEE_SOCKET
     // Signal the Bumblebee daemon to bring up secondary X
     int sock = socket(PF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);