message deletion note added to M-x compile

etc/NEWS

@@ -95,6 +95,10 @@ recognized as warnings or informational come in orange or green, instead of
 red.  Informational messages are by default skipped with `next-error'
 (controlled by `compilation-skip-threshold').
 
+Location data is collected on the fly as the *compilation* buffer changes.
+This means you could modify messages to make them point to different files.
+This also means you can not go to locations of messages you may have deleted.
+
 The variable `compilation-error-regexp-alist' has now become customizable.  If
 you had added your own regexps to this, you'll probably need to include a
 leading `^', otherwise they'll match anywhere on a line.  There is now also a

lisp/ChangeLog

+2004-04-01  Daniel Pfeiffer  <occitan@esperanto.org>
+
+	* compile.el (compilation-current-error): New var.
+	(compilation-setup, compile-mouse-goto-error)
+	(compile-goto-error, next-error): Use it.
+	(compilation-skip-to-next-location): Default to t, which gives
+	contiguous skipping like old compile (where this was redundant).
+	(compilation-next-error): Prevent previous-* commands from moving
+	back to message at or just before point.
+
 2004-04-01  Nick Roberts  <nick@nick.uklinux.net>
 
 	* progmodes/gdb-ui.el (gdb-view-source-function, gdb-view-assembler)