Build: specify BuildRequires for Python 3 pylint

python3-samba is intentionally ommited because it is not in Fedora repos.
Pylint somehow magically ignores this missing package.
Keep in mind that server will not work until this this solved.

https://fedorahosted.org/freeipa/ticket/157

Reviewed-By: Martin Basti <mbasti@redhat.com>
Reviewed-By: Christian Heimes <cheimes@redhat.com>

freeipa.spec.in

@@ -97,6 +97,7 @@ BuildRequires:  python-lesscpy
 
 #
 # Build dependencies for makeapi/makeaci
+# makeapi/makeaci is using Python 2 only for now
 #
 BuildRequires:  python-ldap
 BuildRequires:  python-nss
@@ -146,6 +147,44 @@ BuildRequires:  python-sssdconfig
 BuildRequires:  python-nose
 BuildRequires:  python-paste
 BuildRequires:  systemd-python
+
+%if 0%{?with_python3}
+# FIXME: this depedency is missing - server will not work
+#BuildRequires:  python3-samba
+BuildRequires:  python3-setuptools
+# 0.6: serialization.load_pem_private_key, load_pem_public_key
+BuildRequires:  python3-cryptography >= 1.3.1
+BuildRequires:  python3-gssapi >= 1.2.0
+BuildRequires:  python3-pylint >= 1.0
+# workaround for https://bugzilla.redhat.com/show_bug.cgi?id=1096506
+BuildRequires:  python3-polib
+BuildRequires:  python3-libipa_hbac
+BuildRequires:  python3-memcached
+BuildRequires:  python3-lxml
+# 5.0.0: QRCode.print_ascii
+BuildRequires:  python3-qrcode-core >= 5.0.0
+# 1.13: python-dns URI record support
+BuildRequires:  python3-dns >= 1.13
+BuildRequires:  python3-yubico
+# pki Python package
+# 10.2.1: crypto.NSSCryptoProvider(password_file)
+BuildRequires:  pki-base-python3 >= 10.2.1
+BuildRequires:  python3-pytest-multihost
+BuildRequires:  python3-pytest-sourceorder
+BuildRequires:  python3-jwcrypto
+BuildRequires:  python3-custodia
+BuildRequires:  python3-dbus
+BuildRequires:  python3-dateutil
+BuildRequires:  python3-enum34
+BuildRequires:  python3-netifaces
+BuildRequires:  python3-sss
+BuildRequires:  python3-sss-murmur
+BuildRequires:  python3-sssdconfig
+BuildRequires:  python3-libsss_nss_idmap
+BuildRequires:  python3-nose
+BuildRequires:  python3-paste
+BuildRequires:  python3-systemd
+%endif # with_python3
 %endif # with_lint
 
 #
@@ -280,7 +319,7 @@ Requires: %{name}-common = %{version}-%{release}
 Requires: python3-ipaclient = %{version}-%{release}
 Requires: python3-pyldap >= 2.4.15
 Requires: python3-lxml
-Requires: python3-gssapi >= 1.1.2
+Requires: python3-gssapi >= 1.2.0
 Requires: python3-sssdconfig
 Requires: python3-pyasn1
 Requires: python3-dbus