* progmodes/compile.el (compilation-error-regexp-alist-alist): In

`watcom' anchor regexp to start of line, to avoid slowness
(Bug#5599).

lisp/ChangeLog

+2010-02-20  Kevin Ryde  <user42@zip.com.au>
+
+	* progmodes/compile.el (compilation-error-regexp-alist-alist): In
+	`watcom' anchor regexp to start of line, to avoid slowness
+	(Bug#5599).
+
 2010-02-20  Eli Zaretskii  <eliz@gnu.org>
 
 	* subr.el (remove-yank-excluded-properties): Explain in a comment

lisp/progmodes/compile.el

@@ -350,7 +350,7 @@ File = \\(.+\\), Line = \\([0-9]+\\)\\(?:, Column = \\([0-9]+\\)\\)?"
      "^\\([^, \n\t]+\\), line \\([0-9]+\\), char \\([0-9]+\\)[:., \(-]" 1 2 3)
 
     (watcom
-     "\\(\\(?:[a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)): ?\
+     "^[ \t]*\\(\\(?:[a-zA-Z]:\\)?[^:(\t\n]+\\)(\\([0-9]+\\)): ?\
 \\(?:\\(Error! E[0-9]+\\)\\|\\(Warning! W[0-9]+\\)\\):"
      1 2 nil (4))