Bring back LX zones.

*** 62,72 ****
  
  .KEEP_STATE:
  
  .PARALLEL:      $(PARALLEL_KMODS) $(XMODS) config $(LINT_DEPS)
  
! def all install clean clobber modlist: $(KMODS) $(XMODS) config
  
  clobber: clobber.targ
  
  #
  # Privilege constants
--- 62,72 ----
  
  .KEEP_STATE:
  
  .PARALLEL:      $(PARALLEL_KMODS) $(XMODS) config $(LINT_DEPS)
  
! def all install clean clobber modlist: genassym $(KMODS) $(XMODS) config
  
  clobber: clobber.targ
  
  #
  # Privilege constants
*** 104,114 ****
  #   prerequisites.
  #
  # intel/dtrace depends on i86pc/genassym, so we need to build both
  # i86pc/genassym and intel/genassym.
  #
! all.prereq install.prereq def.prereq: genunix FRC
          @cd ../i86pc/genassym; pwd; $(MAKE) $(@:%.prereq=%)
  
  #
  # i86pc lint libraries should be built first
  #
--- 104,114 ----
  #   prerequisites.
  #
  # intel/dtrace depends on i86pc/genassym, so we need to build both
  # i86pc/genassym and intel/genassym.
  #
! all.prereq install.prereq def.prereq: genassym genunix FRC
          @cd ../i86pc/genassym; pwd; $(MAKE) $(@:%.prereq=%)
  
  #
  # i86pc lint libraries should be built first
  #
*** 122,132 ****
  
  genunix: $(PRIVS_C)
  
  modlintlib clean.lint: $(LINT_KMODS) $(XMODS)
  
! $(KMODS) $(SUBDIRS) config:     FRC
          @cd $@; pwd; $(MAKE) $(NO_STATE) $(TARGET)
  
  $(XMODS):       FRC
          @if [ -f $@/Makefile  ]; then \
                  cd $@; pwd; $(MAKE) $(NO_STATE) $(TARGET); \
--- 122,132 ----
  
  genunix: $(PRIVS_C)
  
  modlintlib clean.lint: $(LINT_KMODS) $(XMODS)
  
! genassym $(KMODS) $(SUBDIRS) config:    FRC
          @cd $@; pwd; $(MAKE) $(NO_STATE) $(TARGET)
  
  $(XMODS):       FRC
          @if [ -f $@/Makefile  ]; then \
                  cd $@; pwd; $(MAKE) $(NO_STATE) $(TARGET); \