calculate-overlay/games-util/steam-launcher/files/steam-fix-joystick-detection.patch

diff -Naur a/steam b/steam
--- a/steam	2016-08-14 18:44:23.069675427 +0100
+++ b/steam	2016-10-04 12:52:42.144904337 +0100
@@ -38,6 +38,15 @@
 # Gentoo's lsb-release doesn't set this.
 export DISTRIB_RELEASE="2.2"
 
+# Finds joystick devices so we can coerce Steam's old SDL library into using them
+IFS=$'\n'
+for f in $(find /dev/input -maxdepth 1 -type c | sort --version-sort); do
+	if udevadm info --query=property --name="$f" 2>/dev/null | grep --quiet ID_INPUT_JOYSTICK=1; then
+		export SDL_JOYSTICK_DEVICE+=${SDL_JOYSTICK_DEVICE+:}$f
+	fi
+done
+unset IFS
+
 function show_message()
 {
 	style=$1