bug#7952: 24.0.50; crash in find_interval

[Chong Yidong]

Eli Zaretskii <eliz@gnu.org> writes:

> Thanks, but will that solution work when start-process is not
> available (MS-DOS)?  I'm not sure (I think compilation-filter is not
> run in that case).

Good point.  This problem isn't limited to grep.  For the synchronous
case, compilation-start should probably run compilation-filter-hook
after call-process returns.  WDYT?

*** lisp/progmodes/compile.el   2011-05-08 05:17:17 +0000
--- lisp/progmodes/compile.el   2011-05-08 20:25:38 +0000
***************
*** 1623,1630 ****
--- 1623,1632 ----
            ;; regardless of where the user sees point.
            (goto-char (point-max))
            (let* ((inhibit-read-only t) ; call-process needs to modify outbuf
+                  (compilation-filter-start (point))
                   (status (call-process shell-file-name nil outbuf nil "-c"
                                         command)))
+             (run-hooks 'compilation-filter-hook)
              (cond ((numberp status)
                     (compilation-handle-exit
                      'exit status