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

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{ stdenv, fetchurl, ocaml, findlib, ocamlbuild, opam }:
let
pname = "cmdliner";
in
assert stdenv.lib.versionAtLeast ocaml.version "3.12";
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stdenv.mkDerivation rec {
name = "ocaml-${pname}-${version}";
version = "0.9.8";
src = fetchurl {
url = "http://erratique.ch/software/${pname}/releases/${pname}-${version}.tbz";
sha256 = "0hdxlkgiwjml9dpaa80282a8350if7mc1m6yz2mrd7gci3fszykx";
};
unpackCmd = "tar xjf $src";
nativeBuildInputs = [ ocamlbuild opam ];
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buildInputs = [ ocaml findlib ];
createFindlibDestdir = true;
configurePhase = "ocaml pkg/git.ml";
buildPhase = "ocaml pkg/build.ml native=true native-dynlink=true";
installPhase = ''
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opam-installer --script --prefix=$out | sh
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ln -s $out/lib/${pname} $out/lib/ocaml/${ocaml.version}/site-lib/
'';
meta = with stdenv.lib; {
homepage = http://erratique.ch/software/cmdliner;
description = "An OCaml module for the declarative definition of command line interfaces";
license = licenses.bsd3;
platforms = ocaml.meta.platforms or [];
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maintainers = [ maintainers.vbgl ];
};
}