don't pass in lint libraries which no longer exist

*** 35,47 ****
  LIBSRCS =       $(LIBOBJS:%.o=$(SRCDIR)/%.c)
  # we don't want to lint the sharetab and nfs_sec files
  lintcheck := SRCS = $(LIBSRCS)
  
  LIBS =          $(DYNLIB) $(LINTLIB)
! LDLIBS +=       -lc -lnsl -lscf -lzfs -luuid -lxml2 -lnvpair
  $(LINTLIB) :=   SRCS = $(SRCDIR)/$(LINTSRC)
  
  #add nfs/lib directory as part of the include path
  CFLAGS +=       $(CCVERBOSE)
  CERRWARN +=     -_gcc=-Wno-parentheses
  CERRWARN +=     -_gcc=-Wno-uninitialized
  CERRWARN +=     -_gcc=-Wno-switch
--- 35,50 ----
  LIBSRCS =       $(LIBOBJS:%.o=$(SRCDIR)/%.c)
  # we don't want to lint the sharetab and nfs_sec files
  lintcheck := SRCS = $(LIBSRCS)
  
  LIBS =          $(DYNLIB) $(LINTLIB)
! LDLIBS +=       -lc -lnsl -lscf -lzfs -luuid -lnvpair
  $(LINTLIB) :=   SRCS = $(SRCDIR)/$(LINTSRC)
  
+ # libxml2 has no lint library, so we can only use it when building
+ $(DYNLIB) := LDLIBS += -lxml2
+ 
  #add nfs/lib directory as part of the include path
  CFLAGS +=       $(CCVERBOSE)
  CERRWARN +=     -_gcc=-Wno-parentheses
  CERRWARN +=     -_gcc=-Wno-uninitialized
  CERRWARN +=     -_gcc=-Wno-switch