fedora-spec: Added buildrequires

This is needed to ensure all the packages are
installed on the system to be able to build
Open vSwitch.

This also permits to use yum-builddep(1) to
automatically install the dependencies on the
system.

Signed-off-by: Flavio Leitner <fbl@redhat.com>
Signed-off-by: Ben Pfaff <blp@nicira.com>

rhel/openvswitch-fedora.spec.in

@@ -27,6 +27,12 @@ License: ASL 2.0 and LGPLv2+ and SISSL
 Release: 1%{?dist}
 Source: http://openvswitch.org/releases/%{name}-%{version}.tar.gz
 
+BuildRequires: autoconf
+BuildRequires: systemd-units openssl openssl-devel
+BuildRequires: python python-twisted-core python-zope-interface PyQt4
+BuildRequires: desktop-file-utils
+BuildRequires: groff graphviz
+
 Requires(post):  systemd-units
 Requires(preun): systemd-units
 Requires(postun): systemd-units