coqPackages: etc

- put `findlib` in `buildInputs` of `mkCoqDerivation` to make sure `coq` packages find their ocaml plugin dependencies,
- use `propagatedBuildInputs` to make sure ocaml plugin dependencies are in path,
- updated `coqPackage.heq` (broken url),
- fixed use of `DESTDIR` and `COQMF_COQLIB` in mkCoqDerivation,
- adding `COQCORELIB` environement variable to put ocaml plugin files in the right place,
- make `metaFetch` available from `coqPackages`

1 files changed, 2 insertions, 2 deletions

diff --git a/pkgs/development/coq-modules/coq-elpi/default.nix b/pkgs/development/coq-modules/coq-elpi/default.nix
index 55423047caa..03fe8c32d5c 100644
--- a/pkgs/development/coq-modules/coq-elpi/default.nix
+++ b/pkgs/development/coq-modules/coq-elpi/default.nix
@@ -7,7 +7,7 @@ with builtins; with lib; let
     { case = "8.13"; out = { version = "1.13.7"; };}
     { case = "8.14"; out = { version = "1.13.7"; };}
     { case = "8.15"; out = { version = "1.14.1"; };}
-  ] {});
+  ] { version = "1.14.1"; } );
 in mkCoqDerivation {
   pname = "elpi";
   repo  = "coq-elpi";
@@ -48,8 +48,8 @@ in mkCoqDerivation {
   release."1.6.0".sha256      = "0kf99i43mlf750fr7fric764mm495a53mg5kahnbp6zcjcxxrm0b";
   releaseRev = v: "v${v}";
 
-  extraNativeBuildInputs = [ which elpi ];
   mlPlugin = true;
+  propagatedBuildInputs = [ elpi ];
 
   meta = {
     description = "Coq plugin embedding ELPI.";