Bug 656441 - Missing library path entry causes LD_PRELOAD error
    
    https://bugzilla.redhat.com/show_bug.cgi?id=656441
    Resolves: bug 656441
    Bug Description: Missing library path entry causes LD_PRELOAD error
    Reviewed by: one liner
    Branch: master
    Fix Description: On some platforms pkg-config --libs will return without
    a -L/path - so try --variable=libdir too - if that doesn't work, just
    assume the mozldap libs are installed in $libdir
    Platforms tested: RHEL5 x86_64
    Flag Day: no
    Doc impact: no