From a0fc0f3e0965db3cba0d8f288d4c25103e0fdd5a Mon Sep 17 00:00:00 2001
From: GloriousEggroll <gloriouseggroll@gmail.com>
Date: Sun, 28 Jan 2024 16:46:32 -0700
Subject: [PATCH] add support for STEAM_COMPAT_LIBRARY_PATHS, allows gamedrive
 to work

---
 gamelauncher.sh | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/gamelauncher.sh b/gamelauncher.sh
index b602bb5..aebaf03 100755
--- a/gamelauncher.sh
+++ b/gamelauncher.sh
@@ -24,7 +24,6 @@ if [[ $(echo $ULWGL_ID | cut -d "-" -f 2) =~ $numcheck ]]; then
 fi
 export SteamAppId="$STEAM_COMPAT_APP_ID"
 export SteamGameId="$STEAM_COMPAT_APP_ID"
-export STEAM_COMPAT_LIBRARY_PATHS=''
 
 if [[ -z $STEAM_COMPAT_INSTALL_PATH ]]; then
   exepath="$(readlink -f "$1")"
@@ -32,6 +31,30 @@ if [[ -z $STEAM_COMPAT_INSTALL_PATH ]]; then
   export STEAM_COMPAT_INSTALL_PATH="$gameinstallpath"
 fi
 
+if [[ -z $STEAM_COMPAT_LIBRARY_PATHS ]]; then
+  # The following info taken from steam ~/.local/share/ubuntu12_32/steam-runtime/run.sh
+  host_library_paths=
+  exit_status=0
+  ldconfig_output=$(/sbin/ldconfig -XNv 2> /dev/null; exit $?) || exit_status=$?
+  if [[ $exit_status != 0 ]]; then
+      echo "Warning: An unexpected error occurred while executing \"/sbin/ldconfig -XNv\", the exit status was $exit_status"
+  fi
+
+  while read -r line; do
+    # If line starts with a leading / and contains :, it's a new path prefix
+    if [[ "$line" =~ ^/.*: ]]
+    then
+        library_path_prefix=$(echo "$line" | cut -d: -f1)
+
+        host_library_paths=$host_library_paths$library_path_prefix:
+    fi
+  done <<< "$ldconfig_output"
+
+  host_library_paths="${LD_LIBRARY_PATH:+"${LD_LIBRARY_PATH}:"}$host_library_paths"
+  steam_runtime_library_paths="${STEAM_COMPAT_INSTALL_PATH}:${host_library_paths}"
+  export STEAM_COMPAT_LIBRARY_PATHS="$steam_runtime_library_paths"
+fi
+
 if [[ -z $PROTON_VERB ]]; then
   export PROTON_VERB="waitforexitandrun"
 fi