babeltrace: fix cross-compilation

{ lib, stdenv, fetchurl, pkg-config, glib, libuuid, popt, elfutils }:

{ lib, stdenv, fetchurl, autoreconfHook, pkg-config, glib, libuuid, popt, elfutils }:

stdenv.mkDerivation rec {

  pname = "babeltrace";

    sha256 = "1hkg3phnamxfrhwzmiiirbhdgckzfkqwhajl0lmr1wfps7j47wcz";

  };

  nativeBuildInputs = [ pkg-config ];

  # The pre-generated ./configure script uses an old autoconf version which

  # breaks cross-compilation (replaces references to malloc with rpl_malloc).

  # Re-generate with nixpkgs's autoconf. This requires glib to be present in

  # nativeBuildInputs for its m4 macros to be present.

  nativeBuildInputs = [ autoreconfHook glib pkg-config ];

  buildInputs = [ glib libuuid popt elfutils ];

  # --enable-debug-info (default) requires the configure script to run host

  # executables to determine the elfutils library version, which cannot be done

  # while cross compiling.

  configureFlags = lib.optional (stdenv.hostPlatform != stdenv.buildPlatform) "--disable-debug-info";

  meta = with lib; {

    description = "Command-line tool and library to read and convert LTTng tracefiles";

    homepage = "https://www.efficios.com/babeltrace";