#include <config.h>
+/* Specification. */
+#include <unistd.h>
+
#include <sys/types.h>
#include <fcntl.h>
# include <sys/stat.h>
# include <errno.h>
-# include <unistd.h>
int
ftruncate (int fd, off_t length)
}
# else /* not F_CHSIZE nor F_FREESP */
-# if HAVE_CHSIZE
+# if HAVE_CHSIZE /* native Windows, e.g. mingw */
int
ftruncate (int fd, off_t length)