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(C++) How to cross-compile a Qt Creator project from Ubuntu to a windows executable: example 17: any application, use of dpkg-cross

 

This is example 17, and perhaps a viable solutions of answering the Qt FAQ How to cross-compile a Qt Creator project from Ubuntu to a windows executable?, which follows [1].

 

 

 

 

 

 

Project information

 

Operating system: Ubuntu 10.04 LTS Lucid Lynx

IDE: Qt Creator 2.0.0

Project type: GUI application

Compiler: G++ 4.4.1

Libraries used:

 

 

 

 

 

Qt project file

 

#-------------------------------------------------
#
# Project created by QtCreator 2010-09-25T09:43:28
#
#-------------------------------------------------
QT       += core
QT       -= gui
LIBS += -L/usr/local/lib -lboost_filesystem
TARGET = CppQtCrosscompileToWindowsExample5
CONFIG   += console
CONFIG   -= app_bundle
TEMPLATE = app
SOURCES += main.cpp

 

 

 

 

 

main.cpp

 

///CppQtCrosscompilerToWindowsExample3:
///cross-compiling a console application with
///a library (that is: boost_filesystem).
//---------------------------------------------------------------------------
#include <iostream>
#include <string>
#include <vector>
//---------------------------------------------------------------------------
#include <boost/filesystem.hpp>
//---------------------------------------------------------------------------
//From http://www.richelbilderbeek.nl/CppGetFilesInFolder.htm
const std::vector<std::string> GetFilesInFolder(const std::string& folder)
{
  std::vector<std::string> v;

  const boost::filesystem::path my_folder
    = boost::filesystem::system_complete(
        boost::filesystem::path(folder));

  if (!boost::filesystem::is_directory(my_folder)) return v;

  const boost::filesystem::directory_iterator j;
  for ( boost::filesystem::directory_iterator i(my_folder);
        i != j;
        ++i)
  {
    if ( boost::filesystem::is_regular_file( i->status() ) )
    {
      const std::string filename = i->path().filename();
      //const std::string full_filename = folder + "/" + filename;
      v.push_back(filename);
    }
  }
  return v;
}
//---------------------------------------------------------------------------
//From http://www.richelbilderbeek.nl/CppGetPath.htm
const std::string GetPath(const std::string& filename)
{
  return boost::filesystem::path(filename).parent_path().string();
}
//---------------------------------------------------------------------------
int main(int, char* argv[])
{
  const std::vector<std::string> v = GetFilesInFolder(GetPath(argv[0]));
  std::copy(v.begin(),v.end(),std::ostream_iterator<std::string>(std::cout,"\n"));
  std::cout << "Number of files: " << v.size() << '\n';
}
//---------------------------------------------------------------------------

 

 

 

 

 

Process

 

sudo apt-get install dpkg-cross

 

sudo gedit /etc/dpkg-cross/cross-compile Added text to the file opened: crossprefix = i586-mingw32msvc- crossdir = /usr/i586-mingw32msvc

 

 

 

 

 

 

 

 

References

 

 

 

 

 

[1] http://wiki.njh.eu/Cross_Compiling_for_Win32

 

 

 

 

 

 

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