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Subject: Re: Qt5: QDir::mkpath() fails for /cygdrive/ paths
To: cygwin@cygwin.com
References: <559EC831.9030404@tiscali.co.uk>
From: David Stacey <drstacey@tiscali.co.uk>
Message-ID: <55CBC1CD.6050801@tiscali.co.uk>
Date: Wed, 12 Aug 2015 22:59:41 +0100
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On 09/07/2015 20:14, David Stacey wrote:
> QDir::mkpath() fails when creating paths that start '/cygdrive/'. This 
> problem is only shown with Qt5 (not Qt4), and only with paths that 
> start '/cygdrive/' (so running from my home directory '~' is fine). 
> This is not a permissions problem, as it works fine with Qt4.
>
> Sample programme is below. Compile for Qt5 as per the comments. 'cd 
> /cygdrive/X' where X is a local drive where you have permissions to 
> create a directory. Run './create_directory new_dir' and it fails to 
> create the directory. Programme works fine when compiled with Qt4.

I have updated to libQt5Core5-5.4.2-2, and I'm still getting this 
problem. Is anyone else able to reproduce this, or offer some insight as 
to why it might be failing? For completeness, my example programme is 
included below.

Dave.


// Programme to create a directory.
// Works with Qt4:
// g++ -I/usr/include/qt4 -o create_directory create_directory.cpp -lQtCore
//
// Fails with Qt5 if run from a path starting '/cygdrive/', otherwise OK:
// g++ -I/usr/include/qt5 -o create_directory create_directory.cpp 
-lQt5Core

#include <QtCore/QDir>
#include <iostream>

int main(int argc, char** argv)
{
   if (argc != 2)
     std::cerr << "Syntax: create_directory <name>";
   else
   {
     QDir dir(QDir::currentPath());
     if (!dir.mkpath(argv[1]))
       std::cerr << "Failed to create directory '"
                 << argv[1] << "'." << std::endl;
   }
   return 0;
}




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