tools: build a tools copy of make (which the build will automatically use)

*** 34,52 ****
--- 34,54 ----
  ROOTONBLDBIN=           $(ROOTONBLD)/bin
  ROOTONBLDBINMACH=       $(ROOTONBLD)/bin/$(MACH)
  ROOTONBLDETC=           $(ROOTONBLD)/etc
  ROOTONBLDLIB=           $(ROOTONBLD)/lib
  ROOTONBLDLIBMACH=       $(ROOTONBLD)/lib/$(MACH)
+ ROOTONBLDLIBMACH64=     $(ROOTONBLD)/lib/$(MACH)/64
  ROOTONBLDLIBPERL=       $(ROOTONBLD)/lib/perl
  ROOTONBLDLIBPY=         $(ROOTONBLD)/lib/python
  ROOTONBLDLIBPY_26=      $(ROOTONBLD)/lib/python2.6
  ROOTONBLDENV=           $(ROOTONBLD)/env
  ROOTONBLDGK=            $(ROOTONBLD)/gk
  ROOTONBLDMAN=           $(ROOTONBLD)/man
  ROOTONBLDMAN1=          $(ROOTONBLD)/man/man1
  ROOTONBLDETCABI=        $(ROOTONBLD)/etc/abi
  ROOTONBLDETCEXCEPT=     $(ROOTONBLD)/etc/exception_lists
+ ROOTONBLDSHARE=         $(ROOTONBLD)/share
  
  CPPFLAGS=               -D_TS_ERRNO
  ELFSIGN_O=              $(TRUE)
  LDLIBS=
  LDFLAGS=                $(MAPFILE.NES:%=-M%) $(MAPFILE.NED:%=-M%) \