To: cygwin AT cygwin DOT com
From: Eric Lilja <mindcooler AT gmail DOT com>
Subject:  Slightly off-topic, but...
Date:  Tue, 29 May 2007 17:46:03 +0200
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Message-ID: <f3hhrr$qt1$1@sea.gmane.org>
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Hi, I've installed qt-win-opensource-4.2.3-mingw.exe from trolltech and 
I'm using the tools installed by cygwin to develop Qt programs. Well, 
one could argue I'm not really using cygwin because I have to pass 
-mno-cygwin when compiling otherwise I get errors for non-trivial programs.
Anyway, -mno-cygwin makes the executables dependent on mingwm10.dll 
instead of cygwin1.dll, correct? Since my QT programs depend on this dll 
I can only start them from a cygwin shell since cygwin itself is not in 
windows path (and I don't think it should be).
My question is how safe is it to put mingwm10.dll in the windows path so 
I can start my qt programs from explorer? That would mean having two 
copies of the same dll in the path under cygwin...which I know is bad 
for cygwin1.dll. I was thinking of writing a startup script that checks 
that the files are identical so I know when I need to update the copy. I 
also tried to put a shortcut to the dll but that didn't work which was 
very unfortunate I think.

Any comments welcome...sorry for being off-topic, but maybe this is of 
interest to people using cygwin and maybe want to develop Qt programs 
and don't have a real mingw installation (I don't).

- Eric

PS. I know -mno-cygwin is probably going to be removed in a future 
version of cygwin's compiler, does that mean I would have to maintain a 
real mingw installation to develop Qt programs? I have MSVC++ as well, 
but I believe the Qt version for MSVC++ costs money. Maybe I will buy 
that later when I really need a debugger I can wrap my head around, heh. DS.


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