[build] Split stdlib to it's own opam package.

We introduce a new package structure for Coq:

- `coq-core`: Coq's OCaml tools code and plugins
- `coq-stdlib`: Coq's stdlib [.vo files]
- `coq`: meta-package that pulls `coq-{core,stdlib}`

This has several advantages, in particular it allows to install Coq
without the stdlib which is useful in several scenarios, it also open
the door towards a versioning of the stdlib at the package level.

The main user-visible change is that Coq's ML development files now
live in `$lib/coq-core`, for compatibility in the regular build we
install a symlink and support both setups for a while.

Note that plugin developers and even `coq_makefile` should actually
rely on `ocamlfind` to locate Coq's OCaml libs as to be more robust.

There is a transient state where we actually look for both
`$coqlib/plugins` and `$coqlib/../coq-core/plugins` as to support
the non-ocamlfind plus custom variables.

This will be much improved once #13617 is merged (which requires this
PR first), then, we will introduce a `coq.boot` library so finally
`coqdep`, `coqchk`, etc... can share the same path setup code.

IMHO the plan should work fine.

1 files changed, 10 insertions, 10 deletions

diff --git a/tools/dune b/tools/dune
index d591bb0c37..703342b15c 100644
--- a/tools/dune
+++ b/tools/dune
@@ -1,6 +1,6 @@
 (install
  (section lib)
- (package coq)
+ (package coq-core)
  (files
   (CoqMakefile.in as tools/CoqMakefile.in)
   (TimeFileMaker.py as tools/TimeFileMaker.py)
@@ -11,30 +11,30 @@
 (executable
  (name coq_makefile)
  (public_name coq_makefile)
- (package coq)
+ (package coq-core)
  (modules coq_makefile)
- (libraries coq.lib))
+ (libraries coq-core.lib))
 
 (executable
  (name coqworkmgr)
  (public_name coqworkmgr)
- (package coq)
+ (package coq-core)
  (modules coqworkmgr)
- (libraries coq.stm))
+ (libraries coq-core.stm))
 
 (executable
  (name coqdep)
  (public_name coqdep)
- (package coq)
+ (package coq-core)
  (modules coqdep_lexer coqdep_common coqdep)
- (libraries coq.lib))
+ (libraries coq-core.lib))
 
 ; Bare-bones mllib/mlpack parser
 (executable
  (name ocamllibdep)
  (public_name ocamllibdep)
  (modules ocamllibdep)
- (package coq)
+ (package coq-core)
  (libraries unix))
 
 (ocamllex coqdep_lexer ocamllibdep)
@@ -42,7 +42,7 @@
 (executable
  (name coqwc)
  (public_name coqwc)
- (package coq)
+ (package coq-core)
  (modules coqwc)
  (libraries))
 
@@ -51,6 +51,6 @@
 (executables
  (names coq_tex)
  (public_names coq-tex)
- (package coq)
+ (package coq-core)
  (modules coq_tex)
  (libraries str))