This is just in case there is some rogue platform that uses a nonstandard value for SEEK_*, and does not define that macro in unistd.h. I think that's unlikely, but it's conceivable.
@@ -17,12 +17,16 @@
#ifdef _WIN32
#include <windows.h>
#endif
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
#include "lib/fdio/fdio.h"
#include "lib/cc/torint.h"
#include "lib/err/torerr.h"
#include <stdlib.h>
+#include <stdio.h>
/** @{ */
/** Some old versions of Unix didn't define constants for these values,