(Insta)Death to XEmacs 21

[I'm trying to cons up a test case that will give SIGPIPE, but I definitely did not expect to see a segmentation fault.] This is a regression error. In XEmacs 20.4 the result is Internal error: lstream not open: #<INTERNAL EMACS BUG (filedesc lstream) 0x0x859fa00> and XEmacs does not crash. Given this "C" program: Compile this. And evaluate the following Lisp: In a new XEmacs 21, load boom-boom.el and evaluate the following: M-: (boom-boom "/path/to/broken-cat" "some-large-file") I see: M-: (boom-boom "/home/steve/bin/broken-cat" "~/.emacs") Fatal error (11). Your files have been auto-saved. Use `M-x recover-session' to recover them. ... process-send-region(#<process "*Boom*" pid 25827 state:exit> 1 49715) # bind (p) (let ((p ...)) (process-send-region p (point-min) (point-max))) ) # (unwind-protect ...) ... Someone please try this on MS Windows (if processes are supported) and XEmacs/No-Mule.