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From: <mgix AT mgix DOT com>
To: <cygwin AT cygwin DOT com>
Subject: dlopen : loads dll twice and freezes cygwin on exit
Date: Tue, 22 Apr 2003 13:38:55 -0700
Message-ID: <AMEKICHCJFIFEDIBLGOBIEJECDAA.mgix@mgix.com>
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I would like to report what I suspect is a bug in Cygwin.

Symptoms:
		. A DLL loaded with dlopen gets loaded twice

		. Cygwin freezes when exit() is called.

This occurs in the following specific conditions:

		1. All code is C++

		2. Main app is linked with a dll

		3. Said dll has a static C++ object whose constructor
               loads yet another dll with dlopen.

		4. dynloaded DLL also has a static C++ object whose
		   constructor does a printf

First, when the app launches, you notice that the printf statement
in the constructor of the static C++ object in the dynloaded DLL is
triggered twice.

Second, when the app calls exit, it freezes.

I have made a small tarball isolating the bug. It can be downloaded
from here: http://www.mgix.com/cygfreeze.tar.gz


I looked at the FAQ and the mailing list archive, but couldn't find
a reference to this problem. Is this a known issue ?

Cheers,

	- Mgix



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