.. _building: Building ######## The following instructions will help you build Looking Glass from source code. Before attempting this, you should have a basic understanding of how to use the shell. .. _download_source: Downloading ----------- Visit the Looking Glass `Download Page `__, and download the stable version (**recommended**). You can also download a *bleeding-edge version*, or the latest RC version during a Release Candidate cycle. Developers can clone the source code repo with ``git``. .. code:: bash git clone --recursive https://github.com/gnif/LookingGlass.git .. warning:: Please only clone from Git if you're a developer, and know what you're doing. Looking Glass requires git submodules that must be setup and updated when building. Source code downloads from the website come bundled with the necessary submodules. .. note:: When using the latest bleeding-edge client version, you *MUST* download and install the corresponding host application. .. _build_client_section: Client ------ .. _installing_build_dependencies: Installing build dependencies ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ These required libraries and tools should be installed first. .. note:: The below list of dependencies is for Debian. A community maintained list of dependencies for other distributions for the current **stable** version of Looking Glass is maintained on the wiki at: https://looking-glass.io/wiki/Installation_on_other_distributions .. _client_dependencies: Required dependencies ^^^^^^^^^^^^^^^^^^^^^ .. Editor note: Listed dependencies are Debian packages containing the required resources. All dependencies must be explicitly defined. Omitting required dependencies that happen to be pulled in via Depends: or Recommends: from another listed package is not allowed. All required packages must be listed. - cmake - gcc, g++ \| clang - libegl-dev - libgl-dev - libgles-dev - libfontconfig-dev - libgmp-dev - libspice-protocol-dev - make - nettle-dev - pkg-config .. _client_deps_may_be_disabled: May be disabled <<<<<<<<<<<<<<< These dependencies are required by default, but may be omitted if their feature is disabled when running :ref:`cmake `. - Disable with ``cmake -DENABLE_BACKTRACE=no ..`` - binutils-dev - Disable with ``cmake -DENABLE_X11=no ..`` - libx11-dev - libxfixes-dev - libxi-dev - libxinerama-dev - libxss-dev - libxcursor-dev - libxpresent-dev - Disable with ``cmake -DENABLE_WAYLAND=no ..`` - libxkbcommon-dev - libwayland-bin - libwayland-dev - wayland-protocols - Disable with ``cmake -DENABLE_PIPEWIRE=no ..`` - libpipewire-0.3-dev - libsamplerate0-dev - Disable with ``cmake -DENABLE_PULSEAUDIO=no ..`` - libpulse-dev - libsamplerate0-dev .. _client_deps_recommended: Recommended <<<<<<<<<<< - fonts-dejavu-core (This is the default UI font, but a random font will be chosen if not available). .. _client_fetching_with_apt: Fetching with APT ^^^^^^^^^^^^^^^^^ You can fetch these dependencies with the following command: .. code:: bash apt-get install binutils-dev cmake fonts-dejavu-core libfontconfig-dev \ gcc g++ pkg-config libegl-dev libgl-dev libgles-dev libspice-protocol-dev \ nettle-dev libx11-dev libxcursor-dev libxi-dev libxinerama-dev \ libxpresent-dev libxss-dev libxkbcommon-dev libwayland-dev wayland-protocols \ libpipewire-0.3-dev libpulse-dev libsamplerate0-dev You may omit some dependencies, if you disable the feature which requires them when running :ref:`cmake `. (See :ref:`client_deps_may_be_disabled`) .. _client_building: Building ~~~~~~~~ If you've downloaded the source code as a zip file, simply unzip and ``cd`` into the new directory. If you've cloned the repo with ``git``, then ``cd`` into the *LookingGlass* directory. .. code:: bash mkdir client/build cd client/build cmake ../ make This will build the **looking-glass-client** binary, which is used to display frames from the guest. You can then :ref:`continue installing Looking Glass `, or run it directly from the build directory: .. code:: bash ./looking-glass-client .. seealso:: - :ref:`Client Installation ` - :ref:`Client Usage ` .. note:: For users running GNOME on Wayland, you may want to enable libdecor when building. .. code:: bash cmake -DENABLE_LIBDECOR=ON ../ For details, see :ref:`the FAQ `. .. note:: The most common compile error is related to backtrace support. Try disabling this when building: .. code:: bash cmake -DENABLE_BACKTRACE=0 ../ If you disable this and need support for crash, use ``gdb`` to obtain a backtrace manually. .. _host_building: Host ---- These instructions help you build the host yourself from the :ref:`downloaded source code `. .. warning:: Building the host from source code is not recommended for most purposes, and should only be attempted by users who are prepared to handle issues on their own. Please download the pre-built binary installers from https://looking-glass.io/downloads for stability, and increased support. .. note:: The pre-built binaries also include NvFBC support built in, which is only available to current Nvidia SDK license holders, and cannot be enabled when building the host without also having a license. .. _host_win_on_win: For Windows on Windows ~~~~~~~~~~~~~~~~~~~~~~ 1. Download and install msys2 x86_64 from `http://www.msys2.org/ `__ following the setup instructions provided 2. Run the MSYS2 shell 3. Download build dependencies with pacman .. code:: bash pacman -Fy pacman -Sy git make mingw-w64-x86_64-gcc mingw-w64-x86_64-cmake 4. Change directory to the source tree with ``cd`` 5. Configure the project and build it .. code:: bash mkdir host/build cd host/build cmake -G "MSYS Makefiles" .. make .. _host_linux_on_linux: For Linux on Linux ~~~~~~~~~~~~~~~~~~ Make a ``host/build`` directory, then run ``cmake`` .. code:: bash mkdir host/build cd host/build cmake .. make .. _host_win_cross_on_linux: For Windows cross compiling on Linux ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Like :ref:`host_linux_on_linux`, but using the mingw64 toolchain to cross-compile a Windows ``.exe`` file. .. code:: bash mkdir host/build cd host/build cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain-mingw64.cmake .. make .. _host_build_installer: Building the Windows installer ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 1. :ref:`Build ` the host on Linux. 2. Install ``nsis`` .. code:: bash apt-get install nsis 3. Use ``makensis`` to build the installer. .. code:: bash cd host/build/platform/Windows makensis installer.nsi .. _host_questions: This will build ``looking-glass-host-setup.exe`` under ``host/build/platform/Windows/looking-glass-host-setup.exe`` .. seealso:: :ref:`Installing the Host `