+1998-03-19 Paul Eggert <eggert@twinsun.com>
+
+ * lib/fsusage.h (struct fs_usage): New member
+ fsu_bavail_top_bit_set.
+ * lib/fsusage.c: Include <limits.h>.
+ (CHAR_BIT, EXTRACT_TOP_BIT, PROPAGATE_TOP_BIT): New macros.
+ (get_fs_usage): If top bit of system variable corresponding to
+ fsu_bavail is set, then set fsu_bavail_top_bit_set, and
+ sign-extend the value when storing it into fsu_bavail.
+ * src/df.c (show_dev): If fsu_bavail_top_bit_set is nonzero,
+ assume the original value corresponding to fsu_bavail was negative.
+ Reported by Arne Juul.
+
1998-03-18 Jim Meyering <meyering@eng.ascend.com>
* src/Makefile.am (rm-prep): Add dependency and rule to save users