9006 parallel loader builds fail sporadically

*** 25,35 ****
  clobber :=      TARGET = clobber
  install :=      TARGET = install
  
  all clean clobber: $(SUBDIRS)
  
! install: all $(INSTDIRS)
  
  $(SUBDIRS): FRC
          @cd $@; pwd; $(MAKE) $(MFLAGS) $(TARGET)
  
  FRC:
--- 25,40 ----
  clobber :=      TARGET = clobber
  install :=      TARGET = install
  
  all clean clobber: $(SUBDIRS)
  
! # We must use wait, rather than dependencies, as otherwise we'll run 'make
! # install' in non-INSTDIRS.
! #
! # at present, this makes no difference, if subdirs are added which are not dependencies of instdirs,
! # 'install: all' rules should be added to 'subdirs' Makefiles
! install: all .WAIT $(INSTDIRS)
  
  $(SUBDIRS): FRC
          @cd $@; pwd; $(MAKE) $(MFLAGS) $(TARGET)
  
  FRC: