merging recent changes related to autoloading and tool plugins

merge latest changes related to autoloading

added conditional compilation in init library; BOOTFILES

more assorted script enhancements

merge CM and BTrace changes

fix to startup slowdown

merging back my devel changes (anchor environments)

fixed file names for parallel make

merging changes from devel branch; new boot files

bring revisions from the vendor branch to the trunk

merged my path anchor changes into main trunk
more config/srcarchiveurl! YOU NEED NEW BINFILES more config/srcarchiveurl!
Read HISTORY and src/system/README!

CM.sources implemented; CM.makedepend dropped

merged pending changes into main trunk; see HISTORY; new binfiles!!

merging branch blume_devel_v110p26p2_1 (elimination of corenv)

changes to modmap generator and CM tool parameter mechanism (see HISTORY)

merging back development branch blume_devel_v110p26p1_3...
This involves changes to CM and the removal of CMStaticEnv from
the compiler.  See the HISTORY file for more information.

merging back blume_devel_v110p26p1_1

merging back changes from blume_devel_v110_26_2

- size info in BOOTLIST
     * no fixed upper limits for number of bootfiles or length of
       bootfile names in runtime
     * falling back to old behavior if no BOOTLIST size info found
- allocation size heuristics in .run-sml
     * tries to read cache size from /proc/cpuinfo (this is important for
        small-cache Celeron systems!)
- install.sh robustified
- CM manual updates
- paranoid mode
     * no more CMB.deliver() (i.e., all done by CMB.make())
     * can re-use existing sml.boot.* files
     * init.cmi now treated as library
     * library stamps for consistency checks
- sml.boot.<arch>-<os>/PIDMAP file
     * This file is read by the CM startup code.  This is used to minimize
       the amount of dynamic state that needs to be stowed away for the
       purpose of sharing between interactive system and user code.
- CM.Anchor.anchor instead of CM.Anchor.{set,cancel}
     * Upon request by Elsa.  Anchors now controlled by get-set-pair
       like most other CM state variables.
- Compiler.CMSA eliminated
     * No longer supported by CM anyway.
- fixed bugs in pickler that kept biting Stefan
     * past refs to past refs (was caused by the possibility that
       ad-hoc sharing is more discriminating than hash-cons sharing)
     * integer overflow on LargeInt.minInt
- ml-{lex,yacc} build scripts now use new mechanism
  for building standalone programs
- fixed several gcc -Wall warnings that were caused by missing header
  files, missing initializations, etc., in runtime (not all warnings
  eliminated, though)

CM changes: standalone builds, better CMB.make/deliver, general improvements

tool plugins implemented

preloading made configurable; bare builds working again

cmdline: dflt = autoload; comp->sml

dummy-server fixed; comments; cosmetics

concur moved; remote pathname cleanup; no dependence on target-compilers

filtering and rehashing fixed; Servers.reset added where necessary

pickle context mostly eliminated

small change to SafeIO; cosmetic fix of master-slave interrupt handling; doc

more robust(?) path name protocol

even ordering in master-slave protocol improved

servers: X-platform, rsh, stabilization now work

CMB.deliver (and probably CM.stabilize) now work with compile servers

improvements on parallel stuff

parallel make basically works (with rough edges)

getting ready for parallel...

CMB.symval added; manual update

symval added; getterSetter changed to { get, set }

memoize in stabilize; faster autoload message; consistent handling of ctxt

switchover to new library scheme seems to be completed

compiles now, compiles itself, but then does not boot

mostly done; need to finish Link

new stable format + improved recompile/link (in progress, not working yet)

just syncing; this version does not work

some pathconfig oddness rectified

traversals separated (private state should now also work with autoloader)

backed out of thin traversals

thin traversals implemented (whew!)

bfc_fetch_xxx bogosity eliminated; more fleshing out of CM

better pathconfig interface + some cosmetic improvements

more bugs/problems eliminated from the list...

handling of cwd corrected

more inching towards a usable system

transfer of state during stabilization implemented

bootstrapping now working (it seems)

bootstrapping works now (mainly); PathConfig code cleaned majorly

basic bootstrapping is now working

listfile generation fixed

more work towards being able to bootstrap

error message improved; handling of corenv corrected in btcompile

autoloading added

a host of changes related mostly to pathname handling

various changes in pathname handling etc.

more elaborate pathname handling (for the sake of bt-compiler)

very serious (and stupid!) performance bug killed

RTPID and BINLIST written

error flag in source cancelled; IO vs. interrupts handled more robustly

installation instructions; keep_going off by default

missing copyright notices added

SymVal implemented

build-initdg now reports binpaths and not sourcepaths

some more tweaking of the bt compiler (still needs more, but basically works)

stablefile format enhanced; bootstrap compiler shows signs of life

bootstrap compiler half-working

bootstrap compiler implemented (still needs list file generator etc.)

switched from mkprimperv.sml to build-initdg.sml (which is a lot cleaner)

a bit more flesh on the bootstrap skeleton

first steps towards bootstrap compiler