{ lib, stdenv, fetchFromGitHub, autoreconfHook }: stdenv.mkDerivation rec { pname = "libmodbus"; version = "3.1.10"; src = fetchFromGitHub { owner = "stephane"; repo = "libmodbus"; rev = "v${version}"; hash = "sha256-e2lB5D41a5MOmz9M90ZXfIltSOxNDOrQUpRNU2yYd1k="; }; nativeBuildInputs = [ autoreconfHook ]; configureFlags = [ # when cross-compiling we assume that the host system will return a valid # pointer for calls to malloc(0) or realloc(0) # https://www.uclibc.org/FAQ.html#gnu_malloc # https://www.gnu.org/software/autoconf/manual/autoconf.html#index-AC_005fFUNC_005fMALLOC-454 # the upstream source should be patched to avoid needing this "ac_cv_func_malloc_0_nonnull=yes" "ac_cv_func_realloc_0_nonnull=yes" ]; meta = with lib; { description = "Library to send/receive data according to the Modbus protocol"; homepage = "https://libmodbus.org/"; license = licenses.lgpl21Plus; platforms = with platforms; unix ++ windows; maintainers = [ maintainers.bjornfor ]; }; }