$NetBSD$

Require CMake 3.0 for detecting libbacktrace support.

--- CMakeLists.txt.orig	2016-08-25 12:15:46.000000000 +0000
+++ CMakeLists.txt
@@ -27,7 +27,7 @@ message ("-- Configuring the Manager..."
 
 project (openvas-manager C)
 
-cmake_minimum_required (VERSION 2.6)
+cmake_minimum_required (VERSION 3.0)
 
 if (POLICY CMP0005)
   cmake_policy (SET CMP0005 OLD)