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INSTALL.win.md

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Building glogg for Windows

As often on Windows, building glogg is more complicated than we would like. The method we use to test and generate the builds available on glogg.bonnefon.org is to cross-build glogg from a Debian/Ubuntu machine.

The compiler currently used is MinGW-W64 4.6.3, which is available on Debian unstable and Ubuntu 12.04 LTS:

apt-get install g++-mingw-w64-i686

There are two dependencies that must be built for Windows:

  • Qt, we currently use version 4.8.2
  • Boost, we currently use version 1.50.0

Once the dependencies are installed (see below), a script takes care of the building and the packaging:

./release-win32-x.sh

Building Qt on Windows

It is allegedly possible to cross-compile Qt from Windows but after a lot of frustration, the glogg team is building it natively on Windows (using a Windows 7 64bit VM in VirtualBox) and then using the binary generated from the Linux machine. Amazingly, it works as long as we are using a similar version of gcc (MinGW-W64) on both machines.

Here are instructions to do the build in a Windows 7 VM:

If building a 32 bits version of Qt (what we do for glogg):

  • Modify qt/4.8.2/mkspecs/win32-g++/qmake.conf to add -m32 to QMAKE_CFLAGS and QMAKE_LFLAGS
  • Modify qt/4.8.2/mkspecs/win32-g++/qmake.conf to replace: QMAKE_RC = windres -F pe-i386
  • (optionally make other changes here to improve performances)

Build from the MinGW command prompt:

configure.exe -platform win32-g++-4.6 -no-phonon -no-phonon-backend -no-webkit -fast -opensource -shared -no-qt3support -no-sql-sqlite -no-openvg -no-gif -no-opengl -no-scripttools -qt-style-windowsxp -qt-style-windowsvista
mingw32-make
  • copy the whole qt/4.8.2 to the linux machine in ~/qt-x-win32/qt_win/4.8.2

Creating the cross-compiled Qt target

  • Install ~/qt-x-win32 created before

Then create a copy of the standard gcc target to create the new cross-gcc target:

cd /usr/share/qt4/mkspecs/
sudo cp -a win32-g++ win32-x-g++

and modify it to point to the cross-compiler and our local version of Windows Qt:

sudo sed -i -re 's/ (gcc|g\+\+)/ i686-w64-mingw32-\1/' win32-x-g++/qmake.conf
sudo sed -i -re '/QMAKE_SH/iQMAKE_SH=1' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_COPY_DIR.*$/QMAKE_COPY_DIR = cp -r/' win32-x-g++/qmake.conf
sudo sed -i -re '/QMAKE_LFLAGS/s/$/ -mwindows -static-libgcc -static-libstdc++/' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_RC.*$/QMAKE_RC = i686-w64-mingw32-windres/' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_STRIP\s.*$/QMAKE_STRIP = i686-w64-mingw32-strip/' win32-x-g++/qmake.conf
sudo sed -i -re 's/\.exe//' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_INCDIR\s.*$/QMAKE_INCDIR = \/usr\/i686-w64-mingw32\/include/' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_INCDIR_QT\s.*$/QMAKE_INCDIR_QT = \/home\/$USER\/qt_win\/4.8.2\/include/' win32-x-g++/qmake.conf
sudo sed -i -re 's/QMAKE_LIBDIR_QT\s.*$/QMAKE_LIBDIR_QT = \/home\/$USER\/qt_win\/4.8.2\/lib/' win32-x-g++/qmake.conf

Now you can build a hello world to test Qt:

mkdir /tmp/testqt
cd /tmp/testqt
echo '#include <QApplication>
 #include <QPushButton>

 int main(int argc, char *argv[])
 {
     QApplication app(argc, argv);

     QPushButton hello("Hello world!");
     hello.resize(100, 30);

     hello.show();
     return app.exec();
 }' >main.cpp
qmake -project
qmake -spec win32-x-g++ -r CONFIG+=release
make

Building Boost on Windows

Download the source from boost.org (tested with 1.50.0), DOS EOL mandatory!

Extract it in a Windows VM

Edit bootstrap.bat to read:

call .\build.bat mingw %*...
set toolset=gcc

And from the MinGW prompt:

bootstrap
b2 toolset=gcc address-model=32 variant=debug,release link=static,shared threading=multi install
  • Copy the whole c:\boost_1_50_0 to the linux machine to ~/qt-x-win32/boost_1_50_0

(optional) Install NSIS

If wine and the NSIS compiler (available from here) are available, the script will generate the installer for glogg.

The NSIS compiler should be installed in ~/qt-x-win32/NSIS.

Building glogg

From this point, building glogg is hopefully straightforward:

./release-win32-x.sh

The release-win32-x.sh script might need some changes if you use different paths for the dependencies.

The object file is in ./release/