From aaeb4445f3a5e658f0d5f3c123533f1e81fe4db3 Mon Sep 17 00:00:00 2001
From: Vincent Povirk <vincent@codeweavers.com>
Date: Wed, 1 Apr 2020 11:49:02 -0500
Subject: [PATCH] proton: Store original LD_LIBRARY_PATH before modifying it

Some parts of Wine will invoke system binaries, which should not use
Proton's libraries.
---
 proton | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/proton b/proton
index d4a49abd6..1f32b4904 100755
--- a/proton
+++ b/proton
@@ -414,6 +414,10 @@ class Session:
 
         self.env.pop("WINEARCH", "")
 
+        if 'ORIG_'+ld_path_var not in os.environ:
+            # Allow wine to restore this when calling an external app.
+            self.env['ORIG_'+ld_path_var] = os.environ.get(ld_path_var, '')
+
         if ld_path_var in os.environ:
             self.env[ld_path_var] = g_proton.lib64_dir + ":" + g_proton.lib_dir + ":" + os.environ[ld_path_var]
         else: