steam: re-add patch to LD_PRELOAD required system libs.

... otherwise there's a conflict with ABI used in the ubuntu runtime
and does not start.

srcpkgs/steam/patches/void.patch

@@ -0,0 +1,23 @@
+--- steam.orig 2016-05-07 13:51:39.465996146 +0200
++++ steam      2016-05-07 13:52:51.155112972 +0200
+@@ -183,6 +183,10 @@
+       exit 1
+ fi
+ 
++# --*-- void --*--
++export  LD_PRELOAD='/usr/$LIB/libstdc++.so.6 /usr/$LIB/libgcc_s.so.1 /usr/$LIB/libxcb.so.1'
++# --*-- void --*--
++
+ # go to the install directory and run the client
+ cp "$LAUNCHSTEAMBOOTSTRAPFILE" "$LAUNCHSTEAMDIR/bootstrap.tar.xz"
+ cd "$LAUNCHSTEAMDIR"
+@@ -190,7 +198,7 @@
+       mkdir -p --mode=777 /tmp/dumps
+     if [[ -f "/tmp/dumps/${USER}_stdout.txt" ]]; then
+         rm -f "/tmp/dumps/${USER}_stdout.txt"
+-    fi 
++    fi
+       exec "$LAUNCHSTEAMDIR/$STEAMBOOTSTRAP" "$@" 2>&1 | tee "/tmp/dumps/${USER}_stdout.txt"
+ else
+       exec "$LAUNCHSTEAMDIR/$STEAMBOOTSTRAP" "$@"
+

srcpkgs/steam/template

@@ -4,7 +4,7 @@ only_for_archs="i686 x86_64"
 
 pkgname=steam
 version=1.0.0.52
-revision=3
+revision=4
 wrksrc=steam
 depends="zenity xterm xz curl dbus freetype gdk-pixbuf hicolor-icon-theme desktop-file-utils liberation-fonts-ttf"
 repository="nonfree"