* Version 5.3.1.
+ The test, tests/tail/f-1, failed on powerpc-apple-darwin7.7.0.
+ * src/tail.c (IS_TAILABLE_FILE_TYPE): Adjust definition also to include
+ sockets, since that's what you get when reading from a command-line-
+ supplied pipe on Darwin 7.7.
+ (IS_PIPE_LIKE_FILE_TYPE): Define.
+ (main): Use new IS_PIPE_LIKE_FILE_TYPE rather than simply S_ISFIFO.
+ Reported by Nelson Beebe.
+
* src/expr.c (toarith): Rewrite to detect/diagnose integer overflow,
rather than suffering silently.
Before, expr would silently overflow and wrap around: