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* Science to suppress compiler warnings
@ 2009-06-02 23:08 Xavier Maillard
  2009-06-02 23:36 ` Davis Herring
                   ` (2 more replies)
  0 siblings, 3 replies; 14+ messages in thread
From: Xavier Maillard @ 2009-06-02 23:08 UTC (permalink / raw)
  To: emacs-devel

Hi,

Elisp manual at "Compiler Errors" section (16.6) says we should
conditionalize variable use with a boundp test (same thing for
undefined function) but I find it very unpractical.

I thought (probably was wrong) that:

(eval-when-compile (defvar foo nil))

would do the trick. Is it the correct way to avoid warnings ?

Also while at it, here is what I got when compiling an old
package:

records.el:931:49:Warning: reference to free variable
`records-link-menu-map'

In records-mode:
records.el:1066:23:Warning: assignment to free variable
    `records-link-menu-map'

What is the difference between these two warnings exactly ?
Adding a defvar at the right place fixed that but to feed my
curiosity.

Regards,

Xavier




^ permalink raw reply	[flat|nested] 14+ messages in thread

end of thread, other threads:[~2009-06-03 17:33 UTC | newest]

Thread overview: 14+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-06-02 23:08 Science to suppress compiler warnings Xavier Maillard
2009-06-02 23:36 ` Davis Herring
2009-06-03  8:58   ` Xavier Maillard
2009-06-02 23:57 ` Drew Adams
2009-06-03  0:51   ` Lennart Borgman
2009-06-03  5:35   ` Stefan Monnier
2009-06-03  9:04     ` Xavier Maillard
2009-06-03 17:33       ` Stefan Monnier
2009-06-03 14:11     ` Drew Adams
2009-06-03  8:40   ` Andreas Schwab
2009-06-03 12:26     ` Xavier Maillard
2009-06-03  8:59   ` Xavier Maillard
2009-06-03  4:43 ` Stephen J. Turnbull
2009-06-03  9:58   ` Lennart Borgman

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