{ stdenv, fetchFromGitHub, ocaml, findlib, ncurses, cmdliner, re }: let version = "1.99.21"; in stdenv.mkDerivation { name = "ocaml${ocaml.version}-ocp-build-${version}-beta"; src = fetchFromGitHub { owner = "OCamlPro"; repo = "ocp-build"; rev = "v${version}"; sha256 = "1641xzik98c7xnjwxpacijd6d9jzx340fmdn6i372z8h554jjlg9"; }; buildInputs = [ ocaml findlib cmdliner re ]; propagatedBuildInputs = [ ncurses ]; preInstall = "mkdir -p $out/bin"; preConfigure = '' export configureFlags="$configureFlags --with-metadir=$OCAMLFIND_DESTDIR" ''; meta = with stdenv.lib; { homepage = "https://www.typerex.org/ocp-build.html"; description = "A build tool for OCaml"; longDescription = '' ocp-build is a build system for OCaml application, based on simple descriptions of packages. ocp-build combines the descriptions of packages, and optimize the parallel compilation of files depending on the number of cores and the automatically-inferred dependencies between source files. ''; license = licenses.gpl3; platforms = ocaml.meta.platforms or []; maintainers = [ maintainers.jirkamarsik ]; }; }