Fixed compile error ('NULL' not defined) with gcc 4.6 in System/Resource.hpp
Fixed compile error ('NULL' not defined) with gcc 4.6 in System/Resource.hpp

git-svn-id: 7f7dfef92b25609792ff946baa341f75083d08f0@1812 4e206d99-4929-0410-ac5d-dfc041789085

Polyfructol/Fire,Polyfructol/Fire,Polyfructol/Fire,Polyfructol/Fire