title: libtar.h on mingw32
body: <p>is there a way to use tar.h/libtar.h on MinGW? Compiling libtar fails with an error that it needs tar.h - And tar isn't even compiling because it needs some defines that it only has on unix (I assume.. crashes in rtapelib.c -> SIGPIPE).</p>
  
  <p>Thanks in advance!</p>