Merge branch 'teamviewer-fix-upgrades' of git://github.com/bjornfor/nixpkgs

teamviewer: fix brokenness after updates / GC

pkgs/applications/networking/remote/teamviewer/default.nix

@@ -1,5 +1,5 @@
 { stdenv, fetchurl, libX11, libXtst, libXext, libXdamage, libXfixes, wine, makeWrapper
-, bash }:
+, bash, findutils, coreutils }:
 
 assert stdenv.system == "i686-linux";
 let
@@ -31,6 +31,13 @@ stdenv.mkDerivation {
 
     cat > $out/bin/teamviewer << EOF
     #!${bash}/bin/sh
+    # Teamviewer puts symlinks to nix store paths in ~/.teamviewer. When those
+    # paths become garbage collected, teamviewer crashes upon start because of
+    # those broken symlinks. An easy workaround to this behaviour is simply to
+    # delete all symlinks before we start teamviewer. Teamviewer will fixup the
+    # symlinks, just like it did the first time the user ran it.
+    ${findutils}/bin/find "\$HOME"/.teamviewer/*/*/"Program Files/TeamViewer/" -type l -print0 | ${findutils}/bin/xargs -0 ${coreutils}/bin/rm
+
     export LD_LIBRARY_PATH=${toldpath}\''${LD_LIBRARY_PATH:+:\$LD_LIBRARY_PATH}
     export PATH=${topath}\''${PATH:+:\$PATH}
     $out/share/teamviewer/wrapper wine "c:\Program Files\TeamViewer\Version7\TeamViewer.exe" "\$@"