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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'
	if  [[ "$(lsmod|grep nvidia)" ]] ; then
		if [[ "$(lsmod|grep bbswitch)" ]] ; then
			echo ""
		else
			export LD_LIBRARY_PATH='$LD_LIBRARY_PATH:/usr/lib32/opengl/nvidia/lib:/usr/lib64/opengl/nvidia/lib'
			export __GLVND_DISALLOW_PATCHING=1
		fi
	fi
}

launch_steam () {
	remove_some_bundled_libs
	preload_some_system_libs
	export DISPLAY=:0
	steam
}

launch_steam