Building Quassel on Windows

Software Requirements


Step 1: Install Visual C++ 2008 Express

Step 2: Install Visual C++ 2008 Redistributables.

These will be needed for OpenSSL.

Step 3: Install Platform SDK

Step 4: Install DirectX SDK

Step 5: Install OpenSSL

The first error message can be ignored as the Redistributables were installed.

Step 6: Install Git

Step 7: Install CMake

Step 8: Update the environment variables

Go to the system settings (Start => Control Panel => System), go to the "Advanced" tab and click on Environment Variables.

First you'll have to edit the "Path" variable. Append the following to the current value:

;C:\Programme\Microsoft SDKs\Windows\v7.0\Bin;C:\Program Files\Git\bin;C:\OpenSSL-Win32\bin

Next, create the following new system variables:

  • LIB:
    C:\Programme\Microsoft SDKs\Windows\v7.0\Lib;C:\Programme\Microsoft DirectX SDK (February 2010)\Lib;C:\OpenSSL-Win32\lib\VC\static
    C:\Programme\Microsoft SDKs\Windows\v7.0\Include;C:\Programme\Microsoft DirectX SDK (February 2010)\Include;C:\OpenSSL-Win32\include

Step 9: (Optional Install PostgreSQL and Update the environment variables)

Install PostgreSQL and edit the "Path","LIB" and "INCLUDE" variable. Append the following to the current value:
  • Path
  • LIB:

Step 10: Compile and Install Qt

Create a directory (e.g. C:\dev\) and unpack Qt.

Now open the Visual Studio 2008 command line.

And cd to the directory containing Qt. Now you can configure the Qt installation with the following command:
  • Static without PostgreSQL-Support:
    configure.exe -platform win32-msvc2008 -static -release -qt-sql-sqlite -no-qt3support -qt-zlib -qt-gif -qt-libpng -qt-libmng -qt-libtiff -qt-libjpeg -openssl-linked -confirm-license -opensource -no-phonon -no-dbus -webkit -nomake demos -nomake examples OPENSSL_LIBS="-lssleay32MD -llibeay32MD" -l gdi32 -l crypt32
  • Shared with PostgreSQL-Support:
    configure.exe -platform win32-msvc2008 -shared  -release -qt-sql-sqlite -qt-sql-psql -no-qt3support -qt-zlib -qt-gif -qt-libpng -qt-libmng -qt-libtiff -qt-libjpeg -openssl-linked -confirm-license -opensource -phonon -phonon-backend -nomake demos -nomake examples OPENSSL_LIBS="-lssleay32MD -llibeay32MD" -l gdi32 -l crypt32

Then you can compiled Qt with these commands:


You can close the prompt after this.

Step 11: Update the environment variables again

After installing Qt, you will have to append the following:

  • Path
  • LIB:

Step 12:(Optional for Crypt-Support)

Step 12.1 Install SlikSvn

Step 12.2 Add SlikSvn to environment variables
  • Path

Step 12.3 Build QCA
cd C:\dev
mkdir qca-build
cd qca-build
svn checkout svn://
mkdir qca2-build
cd qca2-build
cmake -DBUILD_TESTS=OFF -DCMAKE_INSTALL_PREFIX=C:\dev\qca -DCMAKE_BUILD_TYPE=Release -G "NMake Makefiles" ..\qca
nmake install

Step 12.4 Add QCA to environment variables

  • Path
  • LIB:

Step 13: Compile Quassel

Open a new Visual Studio 2008 command line and go to the "C:\dev" directory again. Use git to download the Quassel source code.

git clone git://

This will create a new directory "quassel" containing the source. When you want to update Quassel later, you just have to go to this directory (C:\dev\quassel) and do a "git pull" to update the source code.

Next, create a new directory in "C:\dev" in which Quassel will be built. In our case, we will simply call it "build". Change to this directory and enter the following command to configure Quassel:
  • Static:
  • Shared:

And after that:


This will build Quasselcore, Quasselclient and Quasselmonolithic which can be found in the "C:\dev\build" directory.

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