-#if !defined(__KERNEL__)
-#include <libcfs/posix/libcfs.h>
-#elif defined(__linux__)
-#include <libcfs/linux/libcfs.h>
-#else
-#error Unsupported operating system.
-#endif
+#ifdef __KERNEL__
+# include <libcfs/linux/libcfs.h>
+# include <libcfs/params_tree.h>
+#else /* !__KERNEL__ */
+# include <assert.h>
+# include <ctype.h>
+# include <errno.h>
+# include <fcntl.h>
+# include <limits.h>
+# include <signal.h>
+# include <stdarg.h>
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+# include <stdio.h>
+# include <stdlib.h>
+# include <string.h>
+# include <time.h>
+# include <sys/ioctl.h>
+# include <sys/socket.h>
+# include <sys/stat.h>
+# include <sys/time.h>
+# include <sys/types.h>
+# include <libcfs/user-time.h>
+# include <libcfs/user-prim.h>
+# include <libcfs/user-mem.h>
+# include <libcfs/user-lock.h>
+# include <libcfs/user-tcpip.h>
+# include <libcfs/user-bitops.h>
+#endif /* __KERNEL__ */