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{ stdenv, lib, fetchurl, openssl, perl, libcap ? null, libseccomp ? null }:
assert stdenv.isLinux -> libcap != null;
assert stdenv.isLinux -> libseccomp != null;
let
withSeccomp = stdenv.isLinux && (stdenv.isi686 || stdenv.isx86_64);
in
stdenv.mkDerivation rec {
name = "ntp-4.2.8p10";
src = fetchurl {
url = "http://www.eecis.udel.edu/~ntp/ntp_spool/ntp4/ntp-4.2/${name}.tar.gz";
sha256 = "17xrk7gxrl3hgg0i73n8qm53knyh01lf0f3l1zx9x6r1cip3dlnx";
};
configureFlags = [
"--sysconfdir=/etc"
"--localstatedir=/var"
"--with-openssl-libdir=${openssl.out}/lib"
"--with-openssl-incdir=${openssl.dev}/include"
"--enable-ignore-dns-errors"
] ++ stdenv.lib.optional stdenv.isLinux "--enable-linuxcaps"
++ stdenv.lib.optional withSeccomp "--enable-libseccomp";
buildInputs = [ libcap openssl perl ] ++ lib.optional withSeccomp libseccomp;
hardeningEnable = [ "pie" ];
postInstall = ''
rm -rf $out/share/doc
'';
meta = with stdenv.lib; {
homepage = http://www.ntp.org/;
description = "An implementation of the Network Time Protocol";
maintainers = [ maintainers.eelco ];
platforms = platforms.linux;
};
}
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