+#include <osreldate.h>
+#include <stdint.h>
+
+#ifdef __FreeBSD_kernel_version
+# ifndef __FreeBSD_version
+# define __FreeBSD_version __FreeBSD_kernel_version
+# endif
+#endif
+
+#if __FreeBSD_version < 430000 && !defined(__DragonFly__)
+# include <pci/pcivar.h>
+# include <pci/pci_ioctl.h>
+#else
+# include <sys/pciio.h>
+#endif