Getting started » Downloading and building integration libraries

Guide how to download and build integration libraries for the Magnum engine.

The integration repository provides integration of various math and physics libraries with Magnum engine. They are not needed for essential usage, but it might get handy if you want to use something other than builtin components and seamlessly integrate them with the rest of the engine.

Prepared packages

The easiest way to install Magnum Integration is to use one of the ready-made packages for your platform of choice. See Manual build if you want to have more control. Cross-compiling is very similar to cross-compiling of Magnum itself.

Vcpkg package

Magnum Integration libraries are available as a Vcpkg package. See the Magnum Vcpkg documentation for a more detailed introduction and a troubleshooting guide. Installing latest stable version of Magnum Integration with all its dependencies is done like this:

vcpkg install magnum-integration

Note that just a subset of integration libraries is installed by default. To opt-in or opt-out of additional features, you can use the following syntax; feature names are simply names of CMake MAGNUM_WITH_* options from the Enabling or disabling features section but lowercase, e.g.:

vcpkg install magnum-integration[bullet]

To install all features of a package, use *, e.g.:

vcpkg install magnum-integration[*]

There are also Vcpkg packages for Magnum Plugins and Magnum Extras.

ArchLinux packages

In package/archlinux/magnum-integration-git there is a package for Git development build. The package is also in AUR as magnum-integration-git. It depends on Corrade and Magnum ArchLinux packages.

There are also a few development packages for native builds, cross-compilation for Emscripten, Android and MinGW or various sanitizer/coverage builds. See the PKGBUILD files in the package/archlinux directory. They allow you to build and install the package directly from source tree. Example usage:

git clone https://github.com/mosra/magnum-integration && cd magnum-integration
cd package/archlinux
makepkg -fp PKGBUILD # or any other PKGBUILD file

In most cases the development PKGBUILDs also contain a check() function which will run all unit tests before packaging. That might sometimes fail or take too long, pass --nocheck to makepkg to skip that.

Once built, install the package using pacman:

sudo pacman -U magnum-integration-*.pkg.tar.zst

Edit the PKGBUILDs if you want to pass additional flags to CMake or enable / disable additional features.

There are also ArchLinux packages for Magnum Plugins, Magnum Extras and Magnum Examples.

MSYS2 packages

MSYS2 package for the latest stable release is mantained in the official repos. Installing is as simple as this:

pacman -S mingw-w64-x86_64-magnum-integration
                                    # or mingw-w64-i686-magnum-integration

Similarly to ArchLinux, there is one package in the package/msys/magnum-integration directory, which will download and package latest stable release; and then a development PKGBUILD in package/msys, allowing you to package and install the currently checked out source tree. Both depend on corresponding Corrade and Magnum MSYS2 packages. Example usage:

git clone https://github.com/mosra/magnum-integration && cd magnum-integration
cd package/msys
makepkg -fp PKGBUILD

The above works in a 32/64bit MinGW shell, from a MSYS shell the equivalent command is

makepkg-mingw -fp PKGBUILD

which will build both a 32bit and a 64bit version. See the MSYS2 Wiki for more information.

There are also MSYS2 packages for Magnum Plugins.

Packages for Debian, Ubuntu and derivatives

The package/debian/ directory contains all files needed for building Debian packages. You need the Corrade and Magnum Debian packages installed and in addition also the dpkg-dev and debhelper packages. Building is easy, just change directory to package root, link or copy the package/debian directory there and run dpkg-buildpackage:

git clone https://github.com/mosra/magnum-integration && cd magnum-integration
ln -s package/debian .
dpkg-buildpackage --no-sign

This will compile binary and development packages, which will then appear in parent directory. Install them using dpkg:

sudo dpkg -i ../magnum-integration*.deb

If you want to pass additional flags to CMake or enable / disable additional features, add them to dh_auto_configure at the bottom of package/debian/rules. Watch out, as indentation has to be done using tabs, not spaces.

There are also Debian packages for Magnum Plugins, Magnum Extras and Magnum Examples.

Gentoo Linux ebuilds

Gentoo Git ebuild is available in the package/gentoo directory. Get the Corrade and Magnum Gentoo packages first and then build and install Magnum Integration like this:

git clone https://github.com/mosra/magnum-integration && cd magnum-integration
cd package/gentoo
sudo ebuild dev-libs/magnum-integration/magnum-integration-9999.ebuild manifest clean merge

If you want to pass additional flags to CMake or enable / disable additional features, add them to mycmakeargs in the *.ebuild file.

There are also Gentoo packages for Magnum Plugins, Magnum Extras and Magnum Examples.

Homebrew formulas for macOS

macOS Homebrew formulas building the latest Git revision are in the package/homebrew directory. Either use the *.rb files directly or use the tap at https://github.com/mosra/homebrew-magnum. This will install the latest stable version of Magnum Integration with all dependencies:

brew install mosra/magnum/magnum-integration

But often you may want to install the latest Git revision of all Magnum projects instead:

brew install --HEAD mosra/magnum/corrade
brew install --HEAD mosra/magnum/magnum
brew install --HEAD mosra/magnum/magnum-integration

# If already installed, use the following to upgrade, in the same order
brew upgrade --fetch-HEAD mosra/magnum/corrade
brew upgrade --fetch-HEAD mosra/magnum/magnum
brew upgrade --fetch-HEAD mosra/magnum/magnum-integration

When installing from the *.rb files you need to install the Corrade and Magnum Homebrew packages first. As the integration libs depend on a variety of 3rd party libraries, it's possible to control a subset that gets built and installed:

Libraries not listed above are not enabled for building. If you want to pass additional flags to CMake or enable / disable additional features, edit the *.rb file.

There are also Homebrew packages for Magnum Plugins, Magnum Extras and Magnum Examples.

Manual build

The source is available on GitHub: https://github.com/mosra/magnum-integration. Building the integration libraries is very similar to building Magnum itself. See Downloading and building for additonal information about building and running tests, cross-compiling and platform-specific issues.

Enabling or disabling features

Similarly to Magnum, the libraries are build as shared by default. If you are developing for a platform which doesn't support shared libraries or if you just want to link them statically, enable MAGNUM_BUILD_STATIC to build the libraries as static. If you plan to use them with shared libraries later, enable also position-independent code with MAGNUM_BUILD_STATIC_PIC.

Libraries built in the Debug configuration (e.g. with CMAKE_BUILD_TYPE set to Debug) have a -d suffix, similarly to what is done when building Magnum itself.

By default no integration libraries are built and you need to select them manually:

Note that each *Integration namespace documentation contains more detailed information about its dependencies, availability on particular platforms and also a guide how to enable given library for building and hot to use it with CMake.

Using dependencies from Emscripten Ports

When building for Emscripten, by enabling the following options you can use dependencies from Emscripten Ports:

  • MAGNUM_USE_EMSCRIPTEN_PORTS_BULLET — Build BulletIntegration using the version from Emscripten Ports. Requires CMake 3.13 and newer and is equivalent to passing -s USE_BULLET=1 to the compiler. Please note that currently (September 2019), the version there is still the old 2.82 from 2013.

If Emscripten doesn't have the ports cached yet, due to parallel compilation it might happen that while one job is downloading and building the port, another will fail due to headers not being installed yet. Restarting the compilation second time usually works, if you want a reliable way instead, you can do it via embuilder.py, for example:

embuilder.py build bullet

Building documentation

The documentation for integration libraries is built as part of of the main Magnum documentation. Clone the projects next to each other and continue as described in Building documentation.

Continuous Integration

CircleCI

In package/ci/ there is a circle.yml file with Linux GCC 4.8, Linux ARM64, macOS, Linux desktop GLES2/GLES3, Emscripten WebGL1/WebGL2, AddressSanitizer, ThreadSanitizer, Android x86 GLES2/GLES3/Vulkan and iOS x86_64 GLES3 configuration. Online at https://circleci.com/gh/mosra/magnum-integration.

AppVeyor

In package/ci/ there is an appveyor.yml file with Windows desktop MSVC, MinGW, Windows desktop GLES2/GLES3 and Windows RT GLES2/GLES3 configuration. Online at https://ci.appveyor.com/project/mosra/magnum-integration.

Codecov.io

Linux, Linux GLES, macOS and Windows MinGW builds contribute to a combined code coverage report, available online at https://codecov.io/gh/mosra/magnum-integration.