nixpkgs/pkgs/development/ocaml-modules/topkg/default.nix

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{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, result, opam }:
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if !stdenv.lib.versionAtLeast ocaml.version "4.01"
then throw "topkg is not available for OCaml ${ocaml.version}"
else
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let
run = "ocaml -I ${findlib}/lib/ocaml/${ocaml.version}/site-lib/ pkg/pkg.ml";
in
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stdenv.mkDerivation rec {
name = "ocaml${ocaml.version}-topkg-${version}";
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version = "0.9.1";
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src = fetchurl {
url = "http://erratique.ch/software/topkg/releases/topkg-${version}.tbz";
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sha256 = "1slrzbmyp81xhgsfwwqs2d6gxzvqx0gcp34rq00h5iblhcq7myx6";
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};
buildInputs = [ ocaml findlib ocamlbuild ];
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propagatedBuildInputs = [ result ];
unpackCmd = "tar xjf ${src}";
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buildPhase = "${run} build";
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createFindlibDestdir = true;
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installPhase = "${opam}/bin/opam-installer -i --prefix=$out --libdir=$OCAMLFIND_DESTDIR";
passthru = { inherit run; };
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meta = {
homepage = http://erratique.ch/software/topkg;
license = stdenv.lib.licenses.isc;
maintainers = [ stdenv.lib.maintainers.vbgl ];
description = "A packager for distributing OCaml software";
inherit (ocaml.meta) platforms;
};
}