Index: lib/ext2fs/blkmap64_rb.c
--- lib/ext2fs/blkmap64_rb.c.orig
+++ lib/ext2fs/blkmap64_rb.c
@@ -16,6 +16,7 @@
 #include <unistd.h>
 #endif
 #include <fcntl.h>
+#include <sys/select.h> /* timeval */
 #include <time.h>
 #if HAVE_SYS_STAT_H
 #include <sys/stat.h>