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Re: question about cygdrive flags string in the registry (Win 2000)
- From: Randall R Schulz <rrschulz at cris dot com>
- To: cygwin at cygwin dot com
- Date: Fri, 08 Nov 2002 08:17:02 -0800
- Subject: Re: question about cygdrive flags string in the registry (Win 2000)
Vivian,
At 07:34 2002-11-08, Viviana Cotirlea wrote:
Hi,
I ported a database application on Windows 2000 using cygwin. For testing
reasons I put on a clean (no cygwin installed) Windows 2000 machine the
generated app.exe and the cygwin1.dll. For some reason the dbopen() call
failed when trying to read the created before database.
After trying to investigating the problem, I found out that it is working
if in the registry the following data exists:
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
cygdrive flags 22
If this is missing the dbopen() call will fail.
My question is: Because at one point I would like to distribute the
product to others also, and I don't want to obligate them to install the
cygwin, I would like to know why this string is required, and if my only
solution would be to add that key in the registry if the cygwin is not
already installed on that machine?
Attempting to hide your application's dependence on Cygwin is not a good
idea. We have a steady stream (well, a trickle, anyway) of people who
install Cygwin and immediately have problems because unbeknownst to them,
something they installed earlier (sometimes a long time ago) included a
Cygwin1.dll and multiple Cygwin DLLs on a given system don't coexist well.
I'm no lawyer, but be aware of your obligations under the open source
license under which Cygwin is made available (whatever they are).
Thanks a lot,
viv
Randall Schulz
Mountain View, CA USA
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