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From: Andreas Schwab <schwab@linux-m68k.org>
To: "Drew Adams" <drew.adams@oracle.com>
Cc: 'Xavier Maillard' <xma@gnu.org>, emacs-devel@gnu.org
Subject: Re: Science to suppress compiler warnings
Date: Wed, 03 Jun 2009 10:40:20 +0200	[thread overview]
Message-ID: <m2ws7t677v.fsf@igel.home> (raw)
In-Reply-To: <ECDE70B57AE240FC9DBE1F0982FF6DEC@us.oracle.com> (Drew Adams's message of "Tue, 2 Jun 2009 16:57:10 -0700")

"Drew Adams" <drew.adams@oracle.com> writes:

>> (eval-when-compile (defvar foo nil))
>
> (eval-when-compile (defvar foo))
>
> You don't give it a value; you just declare it (to the compiler).

You don't even need eval-when-compile, since toplevel defvars are always
seen by the compiler, and a defvar without a value never sets the
variable.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
"And now for something completely different."




  parent reply	other threads:[~2009-06-03  8:40 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
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 [this message]
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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