Building Slicer with gcc 6

Support
1

I am currently running Debian 9 and I’m trying to rebuild Slicer with gcc 6 which is the default in Debian 9.

I was originally trying to rebuild the stable Slicer 4.6.2 build but came across the issues that were mentioned here resolving all except the issue with ITK and ctk+11: https://issues.slicer.org/view.php?id=4268

I then tried building stable Slicer 4.8 but was unable to do so with Qt 4.8.7, and I must be doing something wrong building Qt5 because QtWebEngine remains unbuilt.

Is there a recommended/known revision of Slicer/Qt/Vtk that is known to work with Debian and gcc 6? I’m not particularly picky as long as it’s around 4.5 and up.

Thanks in advance

2

Hi Franklin,

Here is how I managed to build Slicer on Debian 9. (This is git HEAD
rather than stable, so YMMV.)

First, edit the top of CMakeLists.txt to be this:

set(_msg "Setting C++ standard")
message(STATUS "${_msg} - C++")
if(NOT DEFINED CMAKE_CXX_STANDARD)
  if("${Slicer_VTK_VERSION_MAJOR}" STREQUAL "8" OR DEFINED Qt5_DIR)
    set(CMAKE_CXX_STANDARD 11)
  else()
    set(CMAKE_CXX_STANDARD 98)
  endif()
endif()
# Since SimpleITK requires CMP0067 to properly support C++11, requires
# the corresponding CMake version.
if(CMAKE_CXX_STANDARD EQUAL 11 AND CMAKE_VERSION VERSION_LESS "3.8.2")
  if (NOT DEFINED Slicer_USE_SimpleITK OR Slicer_USE_SimpleITK)
    message(FATAL_ERROR "CMake >= 3.8.2 is required to enable C++11
support")
  endif()
endif()
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
message(STATUS "${_msg} - C++${CMAKE_CXX_STANDARD}")

Next, edit External_OpenSSL.cmake to be this:

    set(OPENSSL_DOWNLOAD_VERSION "1.0.2l" CACHE STRING "Version of
OpenSSL source package to download")
    set(OpenSSL_1.0.2l_URL https://www.openssl.org/source/openssl-1.0.2
l.tar.gz)
    set(OpenSSL_1.0.2l_MD5 f85123cd390e864dfbe517e7616e6566)

Finally, configure like this:

cmake \
    -DQt5_DIR:PATH=/usr/lib/x86_64-linux-gnu/cmake/Qt5/ \
    -DSlicer_VTK_VERSION_MAJOR=8 \
    -DCMAKE_CXX_STANDARD=11 \
    -DSlicer_USE_SimpleITK:BOOL=OFF \
    -DCMAKE_BUILD_TYPE=Release \
    -DBUILD_TESTING:BOOL=OFF \
    ../Slicer

Good luck!
Greg

1 Like
3

Also please use 4.8 instead, as 4.6.2 is more than a year old, and there is no point trying anything with such an old version.

4

Hi Greg,

Thanks, I’ll try that out! Did you use Qt5 built from source (and if so via JC’s easy build?) or another package?

5

Hi Franklin,

No. I use Debian’s qt5 packages. In Debian 9 it is Qt 5.7.1.

Update 2017-11-16. Following packages are needed:

qt5-qmake
libqt5webkit5-dev
qtmultimedia5-dev
qttools5-dev-tools
qttools5-dev
libqt5xmlpatterns5-dev
libqt5svg5-dev
qtwebengine5-dev
qtscript5-dev
libqt5x11extras5-dev
qtbase5-private-dev
qtpositioning5-dev

Greg

1 Like