Revert "PR#6270: remove need for -I directives to ocamldebug in common case (patch by Josh Watzman)"

There seems to be a problematic interaction with backtrace collection. To test this,
  make world.opt
  cd testsuite
  make one DIR=tests/backtrace/

This needs to be sorted out before the patch can go in again.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14510 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
stop ignoring ocamlmklib.ml, it is not a generated file any more

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14512 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Fix PR#6359

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14520 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Get rid of ocamlcomp.sh.  The next step is to share all those common declarations for calling the compilers from various places.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14521 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Revert bad change included in previous commit, which broke tests/typing-module/firstclass.ml (more phrases were accepted by the type-checker).

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14522 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
comment 9644 of PR#6000: principality check for coercion to format

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14523 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Fix PR#6352

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14524 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
ignore generated file ocamlmklibconfig.ml

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Fix PR#6347

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Fix PR#6348

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merge branch 4.01 from 4.01.0 (revision 14115) to branch closure (revision 14525)

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14532 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#6270: remove need for -I directives to ocamldebug in common case

(patch by Josh Watzman)

Add absolute directory names to bytecode format for ocamldebug to use

The need for a long list of -I directives makes interactively using
ocamldebug a pain in the butt. Many folks have solved this with various
`find` invocations or even Python wrappers, but those lead to other
problems when it might include files you weren't expecting (or miss
things you were). But all of this is really annoying since the tooling
should be able to figure out itself, even heuristically, where your
source files are -- gdb gets this right, why can't we?

This patch implements one of the more important heuristics from gdb: you
typically debug on the same machine you built on, so looking for the
source files and built artifacts in the absolute paths where they were
during compilation is a good first try. We write out absolute paths into
a new structure at the beginning of the debug section and then
automatically append those directories into the load path.

This means mean that if you happen to be debugging on a machine
where the original source and build artifacts are *not* available in
their original absolute locations, things will work as before, using the
standard load path mechanism. You can also explicitly use -I to prepend
directories to the load path and override the defaults located by this
new mechanism.

I personally find this makes using ocamldebug much more pleasant :)

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14533 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
harmonize Makefile.nt wrt. Makefile to simplify future line-by-line comparison

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14535 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
PR#6358: obey DESTDIR in install targets

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14536 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
[minor] partial revert of trunk@14535 to make Windows CI happy

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14539 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
CI golf: try a better fix for tools install in Makefile.nt

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minor Makefile.nt fix

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14542 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
make clean: remove *.cmt and *.cmti files

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[minor] Makefile.nt typo

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14545 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
[minor] make tools/Makefile.shared msvc-friendly

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14547 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02