net-libs/libtorrent misses some includes that are required by gcc-4.3.
I have filed a bug report upstream.
Created attachment 145650 [details, diff]
patch for missing includes
Created attachment 145651 [details, diff]
One more missing include fixed
The previous patch compiles libtorrent fine but fails when building rtorrent because one additional include was missing.
I've fixed it with a patch coming from Debian, which is basically identical. Thanks for reporting.
#include <string> is still missing in tracker_list.h.
See my second attachment.
This bug only triggers if you try to compile rtorrent against libtorrent.
Sorry missed that, fixed now.