1# Building glogg for Windows 2 3As often on Windows, building _glogg_ is more complicated than we would like. 4The method we use to test and generate the builds available on 5glogg.bonnefon.org is to cross-build _glogg_ from a Debian/Ubuntu machine. 6 7The compiler currently used is MinGW-W64 4.6.3, which is available on Debian unstable and Ubuntu 12.04 LTS: 8 9 apt-get install g++-mingw-w64-i686 10 11There are two dependencies that must be built for Windows: 12 - Qt, we currently use version 4.8.2 13 - Boost, we currently use version 1.50.0 14 15Once the dependencies are installed (see below), a script takes care of the building and the packaging: 16 17 ./release-win32-x.sh 18 19## Building Qt on Windows 20 21It is allegedly possible to cross-compile Qt from Windows but after a lot of 22frustration, the _glogg_ team is building it natively on Windows (using a 23Windows 7 64bit VM in VirtualBox) and then using the binary generated from the 24Linux machine. Amazingly, it works as long as we are using a similar version 25of gcc (MinGW-W64) on both machines. 26 27Here are instructions to do the build in a Windows 7 VM: 28 29 - Download the source from qt website (tested 4.8.2), be sure to download it with DOS end-of-line conventions (zip archive instead of tar.bz2 or tar.gz). 30 - Install mingw-w64 from TDM-GCC (tdm64-gcc, tested with 4.6.1). 31 - Extract the Qt source in c:\qt\4.8.2 32 33If building a 32 bits version of Qt (what we do for _glogg_): 34 35 - Modify qt/4.8.2/mkspecs/win32-g++/qmake.conf to add `-m32` to `QMAKE_CCFLAGS` and `QMAKE_LFLAGS` 36 - Modify qt/4.8.2/mkspecs/win32-g++/qmake.conf to replace: `QMAKE_RC = windres -F pe-i386` 37 - (optionally make other changes here to improve performances) 38 39Build from the MinGW command prompt: 40 41 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 42 mingw32-make 43 44 - copy the whole `qt/4.8.2` to the linux machine in `~/qt-x-win32/qt_win/4.8.2` 45 46### Creating the cross-compiled Qt target 47 48 - Install ~/qt-x-win32 created before 49 50Then create a copy of the standard gcc target to create the new cross-gcc target: 51 52 cd /usr/share/qt4/mkspecs/ 53 sudo cp -a win32-g++ win32-x-g++ 54 55and modify it to point to the cross-compiler and our local version of Windows Qt: 56 57 sudo sed -i -re 's/ (gcc|g\+\+)/ i686-w64-mingw32-\1/' win32-x-g++/qmake.conf 58 sudo sed -i -re '/QMAKE_SH/iQMAKE_SH=1' win32-x-g++/qmake.conf 59 sudo sed -i -re 's/QMAKE_COPY_DIR.*$/QMAKE_COPY_DIR = cp -r/' win32-x-g++/qmake.conf 60 sudo sed -i -re '/QMAKE_LFLAGS/s/$/ -mwindows/' win32-x-g++/qmake.conf 61 sudo sed -i -re 's/QMAKE_RC.*$/QMAKE_RC = i686-w64-mingw32-windres/' win32-x-g++/qmake.conf 62 sudo sed -i -re 's/QMAKE_STRIP\s.*$/QMAKE_STRIP = i686-w64-mingw32-strip/' win32-x-g++/qmake.conf 63 sudo sed -i -re 's/\.exe//' win32-x-g++/qmake.conf 64 sudo sed -i -re 's/QMAKE_INCDIR\s.*$/QMAKE_INCDIR = \/usr\/i686-w64-mingw32\/include/' win32-x-g++/qmake.conf 65 sudo sed -i -re 's/QMAKE_INCDIR_QT\s.*$/QMAKE_INCDIR_QT = \/home\/$USER\/qt_win\/4.8.2\/include/' win32-x-g++/qmake.conf 66 sudo sed -i -re 's/QMAKE_LIBDIR_QT\s.*$/QMAKE_LIBDIR_QT = \/home\/$USER\/qt_win\/4.8.2\/lib/' win32-x-g++/qmake.conf 67 68Now you can build a hello world to test Qt: 69 70 mkdir /tmp/testqt 71 cd /tmp/testqt 72 echo '#include <QApplication> 73 #include <QPushButton> 74 75 int main(int argc, char *argv[]) 76 { 77 QApplication app(argc, argv); 78 79 QPushButton hello("Hello world!"); 80 hello.resize(100, 30); 81 82 hello.show(); 83 return app.exec(); 84 }' >main.cpp 85 qmake -project 86 qmake -spec win32-x-g++ -r CONFIG+=release 87 make 88 89## Building Boost on Windows 90 91Download the source from boost.org (tested with 1.50.0), DOS EOL mandatory! 92 93Extract it in a Windows VM 94 95Edit bootstrap.bat to read: 96 97 call .\build.bat mingw %*... 98 set toolset=gcc 99 100And from the MinGW prompt: 101 102 bootstrap 103 b2 toolset=gcc address-model=32 variant=debug,release link=static,shared threading=multi install 104 105 - Copy the whole c:\boost_1_50_0 to the linux machine to ~/qt-x-win32/boost_1_50_0 106 107## (optional) Install NSIS 108 109If _wine_ and the NSIS compiler (available from [here](http://nsis.sourceforge.net/Main_Page)) are available, the script will generate the installer for _glogg_. 110 111The NSIS compiler should be installed in `~/qt-x-win32/NSIS`. 112 113## Building _glogg_ 114 115From this point, building _glogg_ is hopefully straightforward: 116 117 ./release-win32-x.sh 118 119The `release-win32-x.sh` script might need some changes if you use different paths for the dependencies. 120 121The object file is in `./release/` 122