zsh_gen is linked against libvlc from $BUILDDIR/lib/.libs and needs it in
LD_LIBRARY_PATH to run.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
(cherry picked from commit 6987c696afae74624552f26b1d5f445e974b5d52)
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>