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#!/usr/bin/env bash
# steam-runtime is a mess with old libraries from Ubuntu 12.04
# so native drivers compiled on anything newer may not load
# if we remove some bundled libs, like gcclibs, native drivers
# will be able to load, because system libs will be used instead
#
# but we have to do this everytime when we launch steam, because
# steam-runtime is being fixed right away by steam client
remove_some_bundled_libs () {
# force steam to use some system libraries
find /home/$USER/.local/share/Steam -name 'libxcb*' -type f | grep -v installed | xargs rm -rf
find /home/$USER/.local/share/Steam -name 'libstdc++.so.6*' -type f | grep -v installed | xargs rm -rf
find /home/$USER/.local/share/Steam -name 'libgcc_s*' -type f | grep -v installed | xargs rm -rf
}
preload_some_system_libs () {
export LD_PRELOAD='/usr/lib32/gcc/x86_64-pc-linux-gnu/4.9.3/32/libstdc++.so.6 /usr/lib32/gcc/x86_64-pc-linux-gnu/4.9.3/32/libgcc_s.so.1 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/libgcc_s.so.1 /usr/lib64/gcc/x86_64-pc-linux-gnu/4.9.3/32/libstdc++.so.6'
# steam must be told where nvidia opengl libs live on gentoo systems
# but this will break optimus, so check if we detect bbswitch in here
# if we do, we do not preload nvidia opengl, as it will break steam
if [[ "$(lsmod|grep nvidia)" && "$(lsmod|grep bbswitch)" ]] ; then
echo ""
echo "nvidia optimus detected, we will not preload nvidia libs"
echo ""
export __GLVND_DISALLOW_PATCHING=1
elif [[ "$(lsmod|grep nvidia)" && ! "$(lsmod|grep bbswitch)" ]] ; then
echo ""
echo "nvidia optimus not detected, we will preload nvidia libs"
echo ""
export LD_LIBRARY_PATH='$LD_LIBRARY_PATH:/usr/lib32/opengl/nvidia/lib:/usr/lib64/opengl/nvidia/lib'
export __GLVND_DISALLOW_PATCHING=1
else
echo ""
echo "no nvidia card detected, moving on"
echo ""
fi
}
launch_steam () {
remove_some_bundled_libs
preload_some_system_libs
export DISPLAY=:0
steam
}
launch_steam
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