kerberos: split headers into $dev

pkgs/os-specific/linux/nfs-utils/default.nix

@@ -1,10 +1,17 @@
 { stdenv, fetchurl, lib, pkgconfig, utillinux, libcap, libtirpc, libevent, libnfsidmap
 , sqlite, kerberos, kmod, libuuid, keyutils, lvm2, systemd, coreutils, tcp_wrappers
+, buildEnv
 }:
 
 let
   statdPath = lib.makeBinPath [ systemd utillinux coreutils ];
 
+  # Not nice; feel free to find a nicer solution.
+  kerberosEnv = buildEnv {
+    name = "kerberos-env-${kerberos.version}";
+    paths = with lib; [ (getDev kerberos) (getLib kerberos) ];
+  };
+
 in stdenv.mkDerivation rec {
   name = "nfs-utils-${version}";
   version = "2.1.1";
@@ -26,7 +33,7 @@ in stdenv.mkDerivation rec {
   configureFlags =
     [ "--enable-gss"
       "--with-statedir=/var/lib/nfs"
-      "--with-krb5=${kerberos}"
+      "--with-krb5=${kerberosEnv}"
       "--with-systemd=$(out)/etc/systemd/system"
       "--enable-libmount-mount"
     ]