Documentation/Nightly/Developers/Build Instructions/Prerequisites

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For the latest Slicer documentation, visit the read-the-docs.


PREREQUISITES

For all systems be sure git-lfs is properly installed for use with VTKv9 (required for VTKm checkout)

As of early 2018, Slicer migrated to Qt5. See instructions at this labs page for the new requirements: https://www.slicer.org/wiki/Documentation/Labs/Qt5-and-VTK8


The prerequisites listed below are required to be able to configure/build/package/test Slicer.

Linux

  • CMake >= 3.7-rc02
  • Git >= 1.7.10
  • Svn >= 1.7
  • Qt 5.11: tested and recommended
    • To build Slicer: install Qt using the distribution package manager.
    • To package and redistribute Slicer: download and execute qt-unified-linux-x64-online.run, install Qt, make sure to select qtscript and qtwebengine components.
  • Qt 4.8.7. See details here. See some history here (Note that any version >= Qt 4.7.4 can be used only for Ubuntu < 12.04)
  • GCC suite

Debian

  • Debian squeeze/wheezy/testing(jessie) users, start by pasting the following lines in a terminal
sudo apt-get install subversion git-core git-svn
sudo apt-get install build-essential libx11-dev libxt-dev libgl1-mesa-dev libosmesa6-dev libglu1-mesa-dev libfontconfig-dev libxrender-dev libncurses5-dev
sudo apt-get install cmake
sudo apt-get install qt-sdk


Ubuntu

Common Prerequisites
sudo apt-get install subversion git-core git-svn

sudo apt-get install make gcc g++ libx11-dev libxt-dev libgl1-mesa-dev libglu1-mesa-dev libfontconfig-dev libxrender-dev libncurses5-dev

sudo apt-get install libosmesa6-dev  # Only for Ubuntu < 14.04.3
  1. On Ubuntu 14.04.3 LTS, attempting to install libosmesa6-dev results in an error.
    The following packages have unmet dependencies:
 libosmesa6-dev : Depends: libosmesa6 (= 10.1.3-0ubuntu0.4) but it is not going to be installed
 E: Unable to correct problems, you have held broken packages.

    For more details, see Bug 1424059.

  1. Slicer compiles successfully without that package, but VTK_OPENGL_HAS_OSMESA is disabled.
  • For Qt5.5 on Ubuntu 16.04
sudo apt-get install libgstreamer-plugins-base0.10-dev
CMake
  1. Open a terminal and copy the command reported below
  2. Download stable version of CMake and extract the archive: 
    sudo apt-get install curl
mkdir ~/Support && cd ~/Support
curl -O https://cmake.org/files/v3.8/cmake-3.8.2-Linux-x86_64.tar.gz
tar -xzvf cmake-3.8.2-Linux-x86_64.tar.gz
  3. Create symbolic links into ~/bin 
    mkdir -p ~/bin
for name in cmake ctest cpack ccmake cmake-gui; do
  ln -s ~/Support/cmake-3.8.2-Linux-x86_64/bin/$name ~/bin/$name
done
  1. You MUST download the standard CMake binary because the distributed version of CMake cannot be used to build slicer.
    See here for more details.
Qt 4 (deprecated)

Ubuntu 14.04 and above: Qt 4 == 4.8.7 MUST be used.

See https://github.com/jcfr/qt-easy-build

or on ubuntu 16.04 and 16.10, you can also install qt4.8.7 with: 

sudo apt-get install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui libqtwebkit-dev

or if that fails (due to libqt4-core and libqt4-gui packages not found): 

sudo apt-get install qt4-dev-tools libqt4-dev libqtcore4 libqtgui4 libqtwebkit-dev

Ubuntu 12.04, 12.10, 13.04 and 13.10: Qt 4 >= 4.8.5 MUST be used. 

cd ~/Support   # This is where we will build Qt and dependent libraries
 
# Keep track of our working directory
cwd=$(pwd)

# This will download, then build zlib and openssl in the current folder
rm -f get-and-build-openssl-for-slicer.sh
wget https://gist.githubusercontent.com/jcfr/9513568/raw/004d4af8829c95690da2af51eaa3f0c64b7c4e02/get-and-build-openssl-for-slicer.sh
chmod u+x get-and-build-openssl-for-slicer.sh 
./get-and-build-openssl-for-slicer.sh 

# This will download Qt source in the current folder
wget http://packages.kitware.com/download/item/6175/qt-everywhere-opensource-src-4.8.6.tar.gz
echo "2edbe4d6c2eff33ef91732602f3518eb  qt-everywhere-opensource-src-4.8.6.tar.gz" > qt-everywhere-opensource-src-4.8.6.tar.gz.md5
md5sum -c qt-everywhere-opensource-src-4.8.6.tar.gz.md5

# This will configure and build Qt in RELEASE against the zlib and openssl previously built
tar -xzvf qt-everywhere-opensource-src-4.8.6.tar.gz
mv qt-everywhere-opensource-src-4.8.6 qt-everywhere-opensource-release-src-4.8.6
mkdir qt-everywhere-opensource-release-build-4.8.6
cd qt-everywhere-opensource-release-src-4.8.6
./configure -prefix $cwd/qt-everywhere-opensource-release-build-4.8.6    \
                   -release \
                   -opensource -confirm-license \
                   -no-qt3support \
                   -webkit \
                   -nomake examples -nomake demos \
                   -openssl -I $cwd/openssl-1.0.1e/include   -L $cwd/openssl-1.0.1e \
&& make -j7 && make install

For more details, consider reading the FAQ entry: Why Qt 4 >= 4.8.5 should be used on Ubuntu 12.04 and above ?

CentOS

See instructions reported in qt5-centos7/Dockerfile


MacOSX

  • XCode command line tools must be installed:
 xcode-select --install
  • El Capitan is what most developers use.
  • CMake 3.7-rc02 is recommended. Check the minimum required CMake version here
  • Qt 5: tested and recommended.
    • For building Slicer: download and execute qt-unified-mac-x64-online.dmg, install Qt 5.10, make sure to select qtscript and qtwebengine components.
    • For packaging and redistributing Slicer: build Qt using qt-easy-build

MacOSX 10.9.4 (Mavericks)

(1) Make sure to install this update: http://support.apple.com/kb/DL1754

(2) Use CMake 3.0.1 - it is known to be working and is supported (if you want to use CMake already installed on your system, 2.8.12.2 is known to work on Mac OS X 10.9.5) 

$ curl -O http://www.cmake.org/files/v2.8/cmake-2.8.11-Darwin64-universal.tar.gz
$ tar -xzvf cmake-2.8.11-Darwin64-universal.tar.gz --strip-components=1

$ CMake\ 2.8-11.app/Contents/bin/cmake --version
cmake version 2.8.11
  • Git >= 1.7.10
  • Svn >= 1.7
  • XCode (for the SDK libs)
    • After installing XCode, install XCode command line developer tools:
xcode-select --install

Mac OSX 10.11 (El Capitan)

XCode up to version 7 is known to work for Slicer compilation. XCode 8 breaks things on several levels for now. Remember to install XCode command line tools (see above) if a reinstall for XCode is needed.

The standard Qt4 installers fail on this version and the 4.8.6 source code won't build. But as described on the slicer-devel mailing list it is possible to install the homebrew version of qt4 which patches it to work on El Capitan (see below).

  • Install the OS, Xcode, and XQuartz (see MacOSX 10.10 above)
  • Install Qt4 by running the following two commands:
brew install qt4
xcode-select --install
  • TCL does not build correctly on El Capitan as of 2015-12-03, so when building Slicer turn `Slicer_USE_PYTHONQT_WITH_TCL` off.

Mac OSX 10.12 (Sierra)

Similar to 10.11 (El Capitan), there are new issues with Qt4 (caused by Phonon). The GitHub user Cartr offered a patch to the brew team, and even though it was not integrated (the homebrew team decided to stop patching their recipe to encourage people to use Qt5), he turned his formula into a tap that can be installed (see below).

Follow instructions for 10.11 (Installing Xcode, XQuartz, run without TCL) but install Qt4 like shown below instead: 

brew install cartr/qt4/qt
xcode-select --install

Confirmed with Xcode:

  • Version 8.1 (8B62) and cmake version 3.4.20151021-g8fbc8e
  • Version 8.3.3 and cmake 3.5.2

Windows

Common Prerequisites

  • CMake >= 3.0 (3.7.1 recommended)
  • Git >= 1.7.10
    • Note For convenience, you could update the PATH variable so that git can be automatically discovered when configuring Slicer. If not, you will have to specify the GIT_EXECUTABLE at configure time.
  • Subversion (SVN) client: any SVN client that has command line tools
    • SlikSvn , or
    • TortoiseSVN - make sure you install Command line client tools component (disabled by default)
  • NSIS (optional): Needed if packaging Slicer - Click here to download. Make sure you install the language packs.
  • Qt:
    • Qt5 recommended and officially supported. Download qt-unified-windows-x86-online.exe and install Qt along with qtscript and qtwebengine components. For more details, read step-by-step guide.
    • Qt 4: will still work until Slicer-4.10 but not officially supported. See details here.

Tested and recommended build environment

Experimental/deprecated build environments

  • Visual Studio 2017 (Community or any other edition) with VS2015 build tools (tested, works well)
    • When configuring Visual Studio installer, enable installation of VC++ 2015.3 v14.00 (v140) toolset for desktop component
    • Visual Studio 2015 toolset must be set in CMake: Optional toolset to use (argument to -T) need to be set to v140
  • Visual Studio 2013 with Update 5 (deprecated, should still work)
    • As of commit 7160260: Slicer compilation is successful, with some caveats.
    • Build Qt 4.8.7 with SSL support using qt-easy-build.
    • Note: be sure to pick the version of qmake that you built in the earlier steps if applicable (CMake may pick a different qmake, for example if installed with anaconda)
  • VS2012 (untested, may work)
  • VS2010 (untested, probably does not work)
    • Microsoft Visual Studio 2010 (Any edition)
    • Make sure to build or install:
      • Qt 4.8
    • Make sure to install:
      • SP1. Click here to download SP1 and click here to understand the motivation.
      • SP1 Compiler update. Click here to download and here to understand the motivation.
  • VS2008 (untested, probably does not work)
  • Cygwin (untested, probably does not work)
    • Cygwin suite (building with cygwin gcc not supported, but the cygwin shell environment can be used to run git, svn, etc).
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