[build] Consolidate stdlib's .v files under a single directory.

Currently, `.v` under the `Coq.` prefix are found in both `theories`
and `plugins`. Usually these two directories are merged by special
loadpath code that allows double-binding of the prefix.

This adds some complexity to the build and loadpath system; and in
particular, it prevents from handling the `Coq.*` prefix in the
simple, `-R theories Coq` standard way.

We thus move all `.v` files to theories, leaving `plugins` as an
OCaml-only directory, and modify accordingly the loadpath / build
infrastructure.

Note that in general `plugins/foo/Foo.v` was not self-contained, in
the sense that it depended on files in `theories` and files in
`theories` depended on it; moreover, Coq saw all these files as
belonging to the same namespace so it didn't really care where they
lived.

This could also imply a performance gain as we now effectively
traverse less directories when locating a library.

See also discussion in #10003

1 files changed, 39 insertions, 0 deletions

diff --git a/theories/micromega/Lia.v b/theories/micromega/Lia.v
new file mode 100644
index 0000000000..e53800d07d
--- /dev/null
+++ b/theories/micromega/Lia.v
@@ -0,0 +1,39 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2019       *)
+(* <O___,, *       (see CREDITS file for the list of authors)           *)
+(*   \VV/  **************************************************************)
+(*    //   *    This file is distributed under the terms of the         *)
+(*         *     GNU Lesser General Public License Version 2.1          *)
+(*         *     (see LICENSE file for the text of the license)         *)
+(************************************************************************)
+(*                                                                      *)
+(* Micromega: A reflexive tactic using the Positivstellensatz           *)
+(*                                                                      *)
+(*  Frédéric Besson (Irisa/Inria)      2013-2016                        *)
+(*                                                                      *)
+(************************************************************************)
+
+Require Import ZMicromega.
+Require Import ZArith_base.
+Require Import RingMicromega.
+Require Import VarMap.
+Require Import DeclConstant.
+Require Coq.micromega.Tauto.
+Declare ML Module "micromega_plugin".
+
+
+Ltac zchecker :=
+  intros __wit __varmap __ff ;
+  exact (ZTautoChecker_sound __ff __wit
+                                (@eq_refl bool true <: @eq bool (ZTautoChecker __ff __wit) true)
+                                (@find Z Z0 __varmap)).
+
+Ltac lia := PreOmega.zify; xlia zchecker.
+               
+Ltac nia := PreOmega.zify; xnlia zchecker.
+
+
+(* Local Variables: *)
+(* coding: utf-8 *)
+(* End: *)