Coq
Coq libraries should be installed in $(out)/lib/coq/${coq.coq-version}/user-contrib/. Such directories are automatically added to the $COQPATH environment variable by the hook defined in the Coq derivation.
Some extensions (plugins) might require OCaml and sometimes other OCaml packages. The coq.ocamlPackages attribute can be used to depend on the same package set Coq was built against.
Coq libraries may be compatible with some specific versions of Coq only. The compatibleCoqVersions attribute is used to precisely select those versions of Coq that are compatible with this derivation.
Here is a simple package example. It is a pure Coq library, thus it depends on Coq. It builds on the Mathematical Components library, thus it also takes mathcomp as buildInputs. Its Makefile has been generated using coq_makefile so we only have to set the $COQLIB variable at install time.
{ stdenv, fetchFromGitHub, coq, mathcomp }:
stdenv.mkDerivation rec {
name = "coq${coq.coq-version}-multinomials-${version}";
version = "1.0";
src = fetchFromGitHub {
owner = "math-comp";
repo = "multinomials";
rev = version;
sha256 = "1qmbxp1h81cy3imh627pznmng0kvv37k4hrwi2faa101s6bcx55m";
};
buildInputs = [ coq ];
propagatedBuildInputs = [ mathcomp ];
installFlags = "COQLIB=$(out)/lib/coq/${coq.coq-version}/";
meta = {
description = "A Coq/SSReflect Library for Monoidal Rings and Multinomials";
inherit (src.meta) homepage;
license = stdenv.lib.licenses.cecill-b;
inherit (coq.meta) platforms;
};
passthru = {
compatibleCoqVersions = v: builtins.elem v [ "8.5" "8.6" "8.7" ];
};
}