Bug 965

The callback.cc file have next structure:

namespace ns3
{
    ...
    #include <cxxabi.h>
    ...
}

With GCC 4.3.3, 4.4.0 and 4.4.4, there are a problem in the building:

In file included from ../src/core/callback.cc:41:
/bin/gcc/gcc-4.3.3/lib/gcc/ia64-suse-linux/4.3.3/../../../../include/c++/4.3.3/cxxabi.h:68: error: typedef 'ns3::__cxxabiv1::__cxa_cdtor_return_type' is initialized (use __typeof__ instead)
/bin/gcc/gcc-4.3.3/lib/gcc/ia64-suse-linux/4.3.3/../../../../include/c++/4.3.3/cxxabi.h:68: error: '__cxa_cdtor_type' was not declared in this scope

The solution is:

#include <cxxabi.h>
namespace ns3
{
    ...
}

I think.