Delivered-To: lablgtk at yquem.inria.fr
Date: Thu, 06 Sep 2007 09:15:10 +0900 (JST)
Message-Id: <20070906.091510.113010632.garrigue at math.nagoya-u.ac.jp>
To: d0 at wp.pl
Subject: Re: [Lablgtk] No destroy signal?
From: Jacques Garrigue <garrigue at math.nagoya-u.ac.jp>
In-Reply-To: <fbn5q0$npf$1 at sea.gmane.org>
References: <fbn5q0$npf$1 at sea.gmane.org>
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From: Dawid Toton <d0 at wp.pl>

> I've compiled current SVN version of LablGTK with Cygwin+mingw.
> When compiling hello.ml from LablGTK tutorial I get this message:
> 
> window#connect#destroy ~callback:destroy;
> ^^^^^^^^^^^^^^
> This expression has type GContainer.container_signals
> It has no method destroy

After checking, here is the explanation: for whatever reason, you have
no gContainer.cmi in your library path (but you have at least
gMain.cmi, gButton.cmi and gWindow.cmi, otherwise nothing would work).
In that case, the ocaml compiler assumes that
GContainer.container_signals is an abstract type, hence the above
error message, which could probably be improved.
I'm sometimes wondering whether this behaviour is correct...

Jacques

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