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

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{ stdenv, fetchurl, ocaml, findlib, jbuilder }:
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assert stdenv.lib.versionAtLeast (stdenv.lib.getVersion ocaml) "4.01";
stdenv.mkDerivation rec {
pname = "dtoa";
name = "ocaml-${pname}-${version}";
version = "0.3.1";
src = fetchurl {
url = "https://github.com/flowtype/ocaml-${pname}/releases/download/v${version}/${pname}-${version}.tbz";
sha256 = "0rzysj07z2q6gk0yhjxnjnba01vmdb9x32wwna10qk3rrb8r2pnn";
};
unpackCmd = "tar xjf $src";
buildInputs = [ ocaml findlib jbuilder ];
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buildPhase = "jbuilder build -p dtoa";
inherit (jbuilder) installPhase;
hardeningDisable = stdenv.lib.optional stdenv.isDarwin "strictoverflow";
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meta = with stdenv.lib; {
homepage = https://github.com/flowtype/ocaml-dtoa;
description = "Converts OCaml floats into strings (doubles to ascii, \"d to a\"), using the efficient Grisu3 algorithm.";
license = licenses.mit;
platforms = ocaml.meta.platforms or [];
maintainers = [ maintainers.eqyiel ];
};
}